64734756 has 24 divisors (see below), whose sum is σ = 155131200. Its totient is φ = 20994912.

The previous prime is 64734739. The next prime is 64734809. The reversal of 64734756 is 65743746.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72456 + ... + 73343.

It is an arithmetic number, because the mean of its divisors is an integer number (6463800).

Almost surely, 2^64734756 is an apocalyptic number.

It is an amenable number.

64734756 is an abundant number, since it is smaller than the sum of its proper divisors (90396444).

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

64734756 is a wasteful number, since it uses less digits than its factorization.

64734756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145843 (or 145841 counting only the distinct ones).

The product of its digits is 423360, while the sum is 42.

The square root of 64734756 is about 8045.7911978873. The cubic root of 64734756 is about 401.5249208203.

The spelling of 64734756 in words is "sixty-four million, seven hundred thirty-four thousand, seven hundred fifty-six".