64993122 has 12 divisors (see below), whose sum is σ = 140818470. Its totient is φ = 21664368.

The previous prime is 64993111. The next prime is 64993171. The reversal of 64993122 is 22139946.

64993122 is a `hidden beast` number, since 649 + 9 + 3 + 1 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 33419961 + 31573161 = 5781^2 + 5619^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1805347 + ... + 1805382.

Almost surely, 2^64993122 is an apocalyptic number.

64993122 is an abundant number, since it is smaller than the sum of its proper divisors (75825348).

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

64993122 is a wasteful number, since it uses less digits than its factorization.

64993122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610737 (or 3610734 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 64993122 is about 8061.8311815617. The cubic root of 64993122 is about 402.0583935372.

The spelling of 64993122 in words is "sixty-four million, nine hundred ninety-three thousand, one hundred twenty-two".