64579902 has 16 divisors (see below), whose sum is σ = 129935232. Its totient is φ = 21397400.

The previous prime is 64579901. The next prime is 64579919. The reversal of 64579902 is 20997546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64579901) 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, 31224 + ... + 33227.

It is an arithmetic number, because the mean of its divisors is an integer number (8120952).

Almost surely, 2^64579902 is an apocalyptic number.

64579902 is an abundant number, since it is smaller than the sum of its proper divisors (65355330).

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

64579902 is a wasteful number, since it uses less digits than its factorization.

64579902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64623.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 64579902 is about 8036.1621437101. The cubic root of 64579902 is about 401.2044984845.

The spelling of 64579902 in words is "sixty-four million, five hundred seventy-nine thousand, nine hundred two".