64020936 has 32 divisors (see below), whose sum is σ = 182917440. Its totient is φ = 18291648.

The previous prime is 64020923. The next prime is 64020947. The reversal of 64020936 is 63902046.

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, 190371 + ... + 190706.

It is an arithmetic number, because the mean of its divisors is an integer number (5716170).

Almost surely, 2^64020936 is an apocalyptic number.

It is an amenable number.

64020936 is an abundant number, since it is smaller than the sum of its proper divisors (118896504).

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

64020936 is a wasteful number, since it uses less digits than its factorization.

64020936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381093 (or 381089 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 64020936 is about 8001.3083930067. The cubic root of 64020936 is about 400.0436119115.

The spelling of 64020936 in words is "sixty-four million, twenty thousand, nine hundred thirty-six".