491700273 has 4 divisors (see below), whose sum is σ = 655600368. Its totient is φ = 327800180.

The previous prime is 491700211. The next prime is 491700281. The reversal of 491700273 is 372007194.

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.

It is a cyclic number.

It is not a de Polignac number, because 491700273 - 2¹⁰ = 491699249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (491700283) 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, 81950043 + ... + 81950048.

It is an arithmetic number, because the mean of its divisors is an integer number (163900092).

Almost surely, 2^491700273 is an apocalyptic number.

It is an amenable number.

491700273 is a deficient number, since it is larger than the sum of its proper divisors (163900095).

491700273 is a wasteful number, since it uses less digits than its factorization.

491700273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163900094.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 491700273 is about 22174.3156151436. The cubic root of 491700273 is about 789.2843345120.

The spelling of 491700273 in words is "four hundred ninety-one million, seven hundred thousand, two hundred seventy-three".