654149976 has 16 divisors (see below), whose sum is σ = 1635375000. Its totient is φ = 218049984.

The previous prime is 654149921. The next prime is 654149981. The reversal of 654149976 is 679941456.

It is a super-2 number, since 2×654149976² = 855824382201601152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13628101 + ... + 13628148.

Almost surely, 2^654149976 is an apocalyptic number.

It is an amenable number.

654149976 is an abundant number, since it is smaller than the sum of its proper divisors (981225024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654149976 is a wasteful number, since it uses less digits than its factorization.

654149976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27256258 (or 27256254 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 654149976 is about 25576.3557998398. The cubic root of 654149976 is about 868.0787196687.

The spelling of 654149976 in words is "six hundred fifty-four million, one hundred forty-nine thousand, nine hundred seventy-six".