654980631 has 16 divisors (see below), whose sum is σ = 904632960. Its totient is φ = 421031520.

The previous prime is 654980629. The next prime is 654980633. The reversal of 654980631 is 136089456.

It is an interprime number because it is at equal distance from previous prime (654980629) and next prime (654980633).

It is not a de Polignac number, because 654980631 - 2¹ = 654980629 is a prime.

It is a super-2 number, since 2×654980631² = 857999253970316322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654980633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65916 + ... + 75198.

It is an arithmetic number, because the mean of its divisors is an integer number (56539560).

Almost surely, 2^654980631 is an apocalyptic number.

654980631 is a deficient number, since it is larger than the sum of its proper divisors (249652329).

654980631 is a wasteful number, since it uses less digits than its factorization.

654980631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10126.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 654980631 is about 25592.5893766145. The cubic root of 654980631 is about 868.4459998329.

The spelling of 654980631 in words is "six hundred fifty-four million, nine hundred eighty thousand, six hundred thirty-one".