64325478 has 32 divisors (see below), whose sum is σ = 148389120. Its totient is φ = 18208800.

The previous prime is 64325477. The next prime is 64325489. The reversal of 64325478 is 87452346.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64325477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2448 + ... + 11603.

It is an arithmetic number, because the mean of its divisors is an integer number (4637160).

Almost surely, 2^64325478 is an apocalyptic number.

64325478 is an abundant number, since it is smaller than the sum of its proper divisors (84063642).

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

64325478 is a wasteful number, since it uses less digits than its factorization.

64325478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14172.

The product of its digits is 161280, while the sum is 39.

The square root of 64325478 is about 8020.3165772929. The cubic root of 64325478 is about 400.6769329250.

The spelling of 64325478 in words is "sixty-four million, three hundred twenty-five thousand, four hundred seventy-eight".