64308986 has 8 divisors (see below), whose sum is σ = 110244000. Its totient is φ = 27560988.

The previous prime is 64308983. The next prime is 64308991. The reversal of 64308986 is 68980346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (64308983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2296736 + ... + 2296763.

It is an arithmetic number, because the mean of its divisors is an integer number (13780500).

Almost surely, 2^64308986 is an apocalyptic number.

64308986 is a deficient number, since it is larger than the sum of its proper divisors (45935014).

64308986 is a wasteful number, since it uses less digits than its factorization.

64308986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593508.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 64308986 is about 8019.2883724181. The cubic root of 64308986 is about 400.6426876617.

The spelling of 64308986 in words is "sixty-four million, three hundred eight thousand, nine hundred eighty-six".