497097531 has 12 divisors (see below), whose sum is σ = 820605552. Its totient is φ = 284055696.

The previous prime is 497097529. The next prime is 497097563. The reversal of 497097531 is 135790794.

497097531 is a `hidden beast` number, since 49 + 70 + 9 + 7 + 531 = 666.

It is not a de Polignac number, because 497097531 - 2¹ = 497097529 is a prime.

It is a super-2 number, since 2×497097531² = 494211910652591922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (497097511) 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, 3945156 + ... + 3945281.

It is an arithmetic number, because the mean of its divisors is an integer number (68383796).

Almost surely, 2^497097531 is an apocalyptic number.

497097531 is a deficient number, since it is larger than the sum of its proper divisors (323508021).

497097531 is a wasteful number, since it uses less digits than its factorization.

497097531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7890450 (or 7890447 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 497097531 is about 22295.6841339305. The cubic root of 497097531 is about 792.1617505186.

The spelling of 497097531 in words is "four hundred ninety-seven million, ninety-seven thousand, five hundred thirty-one".