64501386 has 16 divisors (see below), whose sum is σ = 129095424. Its totient is φ = 21485024.

The previous prime is 64501357. The next prime is 64501391. The reversal of 64501386 is 68310546.

64501386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7990 + ... + 13886.

It is an arithmetic number, because the mean of its divisors is an integer number (8068464).

Almost surely, 2^64501386 is an apocalyptic number.

64501386 is an abundant number, since it is smaller than the sum of its proper divisors (64594038).

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

64501386 is a wasteful number, since it uses less digits than its factorization.

64501386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7725.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 64501386 is about 8031.2754902319. The cubic root of 64501386 is about 401.0418382434.

The spelling of 64501386 in words is "sixty-four million, five hundred one thousand, three hundred eighty-six".