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490776697 = 1313746387
BaseRepresentation
bin11101010000001…
…010100001111001
31021012111001001201
4131100022201321
52001114323242
6120411014201
715106350565
oct3520124171
91235431051
10490776697
11232037884
1211843a361
137a8a5c18
14492746a5
152d1454b7
hex1d40a879

490776697 has 4 divisors (see below), whose sum is σ = 494523216. Its totient is φ = 487030180.

The previous prime is 490776667. The next prime is 490776703. The reversal of 490776697 is 796677094.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 796677094 = 2398338547.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-490776697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490776667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1873063 + ... + 1873324.

It is an arithmetic number, because the mean of its divisors is an integer number (123630804).

Almost surely, 2490776697 is an apocalyptic number.

It is an amenable number.

490776697 is a deficient number, since it is larger than the sum of its proper divisors (3746519).

490776697 is a wasteful number, since it uses less digits than its factorization.

490776697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746518.

The product of its (nonzero) digits is 4000752, while the sum is 55.

The square root of 490776697 is about 22153.4804714745. The cubic root of 490776697 is about 788.7898456283.

The spelling of 490776697 in words is "four hundred ninety million, seven hundred seventy-six thousand, six hundred ninety-seven".

Divisors: 1 131 3746387 490776697