64312930 has 16 divisors (see below), whose sum is σ = 126287424. Its totient is φ = 23386480.

The previous prime is 64312909. The next prime is 64312939. The reversal of 64312930 is 3921346.

It is not an unprimeable number, because it can be changed into a prime (64312939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292222 + ... + 292441.

It is an arithmetic number, because the mean of its divisors is an integer number (7892964).

Almost surely, 2^64312930 is an apocalyptic number.

64312930 is a deficient number, since it is larger than the sum of its proper divisors (61974494).

64312930 is a wasteful number, since it uses less digits than its factorization.

64312930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584681.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 64312930 is about 8019.5342757544. The cubic root of 64312930 is about 400.6508778207.

The spelling of 64312930 in words is "sixty-four million, three hundred twelve thousand, nine hundred thirty".