64351384 has 8 divisors (see below), whose sum is σ = 120658860. Its totient is φ = 32175688.

The previous prime is 64351373. The next prime is 64351387. The reversal of 64351384 is 48315346.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×64351384² = 8282201245430912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64351387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4021954 + ... + 4021969.

Almost surely, 2^64351384 is an apocalyptic number.

It is an amenable number.

64351384 is a deficient number, since it is larger than the sum of its proper divisors (56307476).

64351384 is a wasteful number, since it uses less digits than its factorization.

64351384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8043929 (or 8043925 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 64351384 is about 8021.9314382510. The cubic root of 64351384 is about 400.7307143286.

The spelling of 64351384 in words is "sixty-four million, three hundred fifty-one thousand, three hundred eighty-four".