64319404 has 12 divisors (see below), whose sum is σ = 113446144. Its totient is φ = 31906224.

The previous prime is 64319401. The next prime is 64319407. The reversal of 64319404 is 40491346.

It is an interprime number because it is at equal distance from previous prime (64319401) and next prime (64319407).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (64319401) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 62799 + ... + 63814.

Almost surely, 2^64319404 is an apocalyptic number.

It is an amenable number.

64319404 is a deficient number, since it is larger than the sum of its proper divisors (49126740).

64319404 is a wasteful number, since it uses less digits than its factorization.

64319404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126744 (or 126742 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 64319404 is about 8019.9379049965. The cubic root of 64319404 is about 400.6643210830.

The spelling of 64319404 in words is "sixty-four million, three hundred nineteen thousand, four hundred four".