64704475 has 12 divisors (see below), whose sum is σ = 87527880. Its totient is φ = 47057600.

The previous prime is 64704457. The next prime is 64704487. The reversal of 64704475 is 57440746.

It is not a de Polignac number, because 64704475 - 2⁹ = 64703963 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117370 + ... + 117919.

It is an arithmetic number, because the mean of its divisors is an integer number (7293990).

Almost surely, 2^64704475 is an apocalyptic number.

64704475 is a deficient number, since it is larger than the sum of its proper divisors (22823405).

64704475 is a wasteful number, since it uses less digits than its factorization.

64704475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235310 (or 235305 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 64704475 is about 8043.9091864590. The cubic root of 64704475 is about 401.4623039039.

The spelling of 64704475 in words is "sixty-four million, seven hundred four thousand, four hundred seventy-five".