64607564 has 24 divisors (see below), whose sum is σ = 131147520. Its totient is φ = 27274896.

The previous prime is 64607561. The next prime is 64607573. The reversal of 64607564 is 46570646.

It is a super-3 number, since 3×64607564³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (64607561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15344 + ... + 19095.

It is an arithmetic number, because the mean of its divisors is an integer number (5464480).

Almost surely, 2^64607564 is an apocalyptic number.

It is an amenable number.

64607564 is an abundant number, since it is smaller than the sum of its proper divisors (66539956).

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

64607564 is a wasteful number, since it uses less digits than its factorization.

64607564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34517 (or 34515 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 64607564 is about 8037.8830546357. The cubic root of 64607564 is about 401.2617739644.

The spelling of 64607564 in words is "sixty-four million, six hundred seven thousand, five hundred sixty-four".