64319694 has 16 divisors (see below), whose sum is σ = 128735568. Its totient is φ = 21423872.

The previous prime is 64319683. The next prime is 64319743. The reversal of 64319694 is 49691346.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7024 + ... + 13340.

It is an arithmetic number, because the mean of its divisors is an integer number (8045973).

Almost surely, 2^64319694 is an apocalyptic number.

64319694 is an abundant number, since it is smaller than the sum of its proper divisors (64415874).

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

64319694 is a wasteful number, since it uses less digits than its factorization.

64319694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8019.

The product of its digits is 139968, while the sum is 42.

The square root of 64319694 is about 8019.9559849166. The cubic root of 64319694 is about 400.6649232469.

The spelling of 64319694 in words is "sixty-four million, three hundred nineteen thousand, six hundred ninety-four".