64679190 has 32 divisors (see below), whose sum is σ = 155852640. Its totient is φ = 17178624.

The previous prime is 64679149. The next prime is 64679213. The reversal of 64679190 is 9197646.

It is a super-2 number, since 2×64679190² = 8366795238112200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3516 + ... + 11904.

It is an arithmetic number, because the mean of its divisors is an integer number (4870395).

Almost surely, 2^64679190 is an apocalyptic number.

64679190 is an abundant number, since it is smaller than the sum of its proper divisors (91173450).

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

64679190 is a wasteful number, since it uses less digits than its factorization.

64679190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8656.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 64679190 is about 8042.3373468165. The cubic root of 64679190 is about 401.4100030550.

The spelling of 64679190 in words is "sixty-four million, six hundred seventy-nine thousand, one hundred ninety".