654931497 has 12 divisors (see below), whose sum is σ = 959845040. Its totient is φ = 396927960.

The previous prime is 654931493. The next prime is 654931517. The reversal of 654931497 is 794139456.

It is not a de Polignac number, because 654931497 - 2² = 654931493 is a prime.

It is a super-2 number, since 2×654931497² = 857870531525322018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (654931493) 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, 901747 + ... + 902472.

Almost surely, 2^654931497 is an apocalyptic number.

It is an amenable number.

654931497 is a deficient number, since it is larger than the sum of its proper divisors (304913543).

654931497 is a wasteful number, since it uses less digits than its factorization.

654931497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804244 (or 1804233 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 654931497 is about 25591.6294322968. The cubic root of 654931497 is about 868.4242835201.

The spelling of 654931497 in words is "six hundred fifty-four million, nine hundred thirty-one thousand, four hundred ninety-seven".