64760631 has 12 divisors (see below), whose sum is σ = 93501288. Its totient is φ = 39852384.

The previous prime is 64760627. The next prime is 64760653. The reversal of 64760631 is 13606746.

It is not a de Polignac number, because 64760631 - 2² = 64760627 is a prime.

It is a super-2 number, since 2×64760631² = 8387878655036322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64760592 and 64760601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64760611) 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, 63360 + ... + 64373.

It is an arithmetic number, because the mean of its divisors is an integer number (7791774).

Almost surely, 2^64760631 is an apocalyptic number.

64760631 is a deficient number, since it is larger than the sum of its proper divisors (28740657).

64760631 is a wasteful number, since it uses less digits than its factorization.

64760631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127762 (or 127749 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 64760631 is about 8047.3990208017. The cubic root of 64760631 is about 401.5784112688.

The spelling of 64760631 in words is "sixty-four million, seven hundred sixty thousand, six hundred thirty-one".