490771647 has 12 divisors (see below), whose sum is σ = 713243544. Its totient is φ = 325172880.

The previous prime is 490771643. The next prime is 490771651. The reversal of 490771647 is 746177094.

It is an interprime number because it is at equal distance from previous prime (490771643) and next prime (490771651).

It is not a de Polignac number, because 490771647 - 2² = 490771643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490771643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165804 + ... + 168737.

It is an arithmetic number, because the mean of its divisors is an integer number (59436962).

Almost surely, 2^490771647 is an apocalyptic number.

490771647 is a deficient number, since it is larger than the sum of its proper divisors (222471897).

490771647 is a wasteful number, since it uses less digits than its factorization.

490771647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334710 (or 334707 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 490771647 is about 22153.3664936054. The cubic root of 490771647 is about 788.7871401192.

The spelling of 490771647 in words is "four hundred ninety million, seven hundred seventy-one thousand, six hundred forty-seven".