64705936 has 15 divisors (see below), whose sum is σ = 125430123. Its totient is φ = 32336880.

The previous prime is 64705919. The next prime is 64705943. The reversal of 64705936 is 63950746.

The square root of 64705936 is 8044.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 31171 + ... + 33181.

Almost surely, 2^64705936 is an apocalyptic number.

64705936 is the 8044-th square number.

It is an amenable number.

64705936 is a deficient number, since it is larger than the sum of its proper divisors (60724187).

64705936 is an frugal number, since it uses more digits than its factorization.

64705936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030 (or 2013 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The cubic root of 64705936 is about 401.4653254981.

The spelling of 64705936 in words is "sixty-four million, seven hundred five thousand, nine hundred thirty-six".