64745576 has 16 divisors (see below), whose sum is σ = 138740640. Its totient is φ = 27748080.

The previous prime is 64745557. The next prime is 64745581. The reversal of 64745576 is 67554746.

It is a super-2 number, since 2×64745576² = 8383979223143552, which contains 22 as substring.

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, 578030 + ... + 578141.

It is an arithmetic number, because the mean of its divisors is an integer number (8671290).

Almost surely, 2^64745576 is an apocalyptic number.

It is an amenable number.

64745576 is an abundant number, since it is smaller than the sum of its proper divisors (73995064).

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

64745576 is a wasteful number, since it uses less digits than its factorization.

64745576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156184 (or 1156180 counting only the distinct ones).

The product of its digits is 705600, while the sum is 44.

The square root of 64745576 is about 8046.4635710354. The cubic root of 64745576 is about 401.5472903473.

The spelling of 64745576 in words is "sixty-four million, seven hundred forty-five thousand, five hundred seventy-six".