64478604 has 12 divisors (see below), whose sum is σ = 150450104. Its totient is φ = 21492864.

The previous prime is 64478539. The next prime is 64478621. The reversal of 64478604 is 40687446.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 2686597 + ... + 2686620.

Almost surely, 2^64478604 is an apocalyptic number.

It is an amenable number.

64478604 is an abundant number, since it is smaller than the sum of its proper divisors (85971500).

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

64478604 is a wasteful number, since it uses less digits than its factorization.

64478604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373224 (or 5373222 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 64478604 is about 8029.8570348419. The cubic root of 64478604 is about 400.9946164620.

It can be divided in two parts, 6447 and 8604, that added together give a palindrome (15051).

The spelling of 64478604 in words is "sixty-four million, four hundred seventy-eight thousand, six hundred four".