64385075 has 12 divisors (see below), whose sum is σ = 82591440. Its totient is φ = 49731360.

The previous prime is 64385071. The next prime is 64385077. The reversal of 64385075 is 57058346.

It is not a de Polignac number, because 64385075 - 2² = 64385071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64385071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43679 + ... + 45128.

It is an arithmetic number, because the mean of its divisors is an integer number (6882620).

Almost surely, 2^64385075 is an apocalyptic number.

64385075 is a deficient number, since it is larger than the sum of its proper divisors (18206365).

64385075 is a wasteful number, since it uses less digits than its factorization.

64385075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88846 (or 88841 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 64385075 is about 8024.0310941571. The cubic root of 64385075 is about 400.8006359692.

The spelling of 64385075 in words is "sixty-four million, three hundred eighty-five thousand, seventy-five".