64893732 has 24 divisors (see below), whose sum is σ = 152578272. Its totient is φ = 21465600.

The previous prime is 64893713. The next prime is 64893761. The reversal of 64893732 is 23739846.

It is a super-2 number, since 2×64893732² = 8422392905775648, which contains 22 as substring.

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, 19069 + ... + 22212.

It is an arithmetic number, because the mean of its divisors is an integer number (6357428).

Almost surely, 2^64893732 is an apocalyptic number.

It is an amenable number.

64893732 is an abundant number, since it is smaller than the sum of its proper divisors (87684540).

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

64893732 is a wasteful number, since it uses less digits than its factorization.

64893732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41419 (or 41417 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 64893732 is about 8055.6645908330. The cubic root of 64893732 is about 401.8533412200.

The spelling of 64893732 in words is "sixty-four million, eight hundred ninety-three thousand, seven hundred thirty-two".