491467955 has 32 divisors (see below), whose sum is σ = 678371328. Its totient is φ = 338486400.

The previous prime is 491467937. The next prime is 491467957. The reversal of 491467955 is 559764194.

491467955 = 2059² + 2060² + ... + 2168².

It is not a de Polignac number, because 491467955 - 2²² = 487273651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491467957) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77069 + ... + 83201.

It is an arithmetic number, because the mean of its divisors is an integer number (21199104).

Almost surely, 2^491467955 is an apocalyptic number.

491467955 is a deficient number, since it is larger than the sum of its proper divisors (186903373).

491467955 is a wasteful number, since it uses less digits than its factorization.

491467955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6227.

The product of its digits is 1360800, while the sum is 50.

The square root of 491467955 is about 22169.0765482011. The cubic root of 491467955 is about 789.1600082003.

The spelling of 491467955 in words is "four hundred ninety-one million, four hundred sixty-seven thousand, nine hundred fifty-five".