64915386 has 16 divisors (see below), whose sum is σ = 131023200. Its totient is φ = 21439728.

The previous prime is 64915321. The next prime is 64915391. The reversal of 64915386 is 68351946.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48976 + ... + 50283.

It is an arithmetic number, because the mean of its divisors is an integer number (8188950).

Almost surely, 2^64915386 is an apocalyptic number.

64915386 is an abundant number, since it is smaller than the sum of its proper divisors (66107814).

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

64915386 is a wasteful number, since it uses less digits than its factorization.

64915386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99373.

The product of its digits is 155520, while the sum is 42.

The square root of 64915386 is about 8057.0085019193. The cubic root of 64915386 is about 401.8980335926.

The spelling of 64915386 in words is "sixty-four million, nine hundred fifteen thousand, three hundred eighty-six".