64633875 has 16 divisors (see below), whose sum is σ = 107551392. Its totient is φ = 34471200.

The previous prime is 64633823. The next prime is 64633879. The reversal of 64633875 is 57833646.

It is not a de Polignac number, because 64633875 - 2⁷ = 64633747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64633879) 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, 85804 + ... + 86553.

It is an arithmetic number, because the mean of its divisors is an integer number (6721962).

Almost surely, 2^64633875 is an apocalyptic number.

64633875 is a deficient number, since it is larger than the sum of its proper divisors (42917517).

64633875 is a wasteful number, since it uses less digits than its factorization.

64633875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172375 (or 172365 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 64633875 is about 8039.5195751985. The cubic root of 64633875 is about 401.3162369665.

The spelling of 64633875 in words is "sixty-four million, six hundred thirty-three thousand, eight hundred seventy-five".