64910564 has 12 divisors (see below), whose sum is σ = 116235504. Its totient is φ = 31700424.

The previous prime is 64910533. The next prime is 64910611. The reversal of 64910564 is 46501946.

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, 188522 + ... + 188865.

It is an arithmetic number, because the mean of its divisors is an integer number (9686292).

Almost surely, 2^64910564 is an apocalyptic number.

It is an amenable number.

64910564 is a deficient number, since it is larger than the sum of its proper divisors (51324940).

64910564 is a wasteful number, since it uses less digits than its factorization.

64910564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377434 (or 377432 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 64910564 is about 8056.7092537835. The cubic root of 64910564 is about 401.8880821752. Note that the first 3 decimals are identical.

The spelling of 64910564 in words is "sixty-four million, nine hundred ten thousand, five hundred sixty-four".