64233873 has 48 divisors (see below), whose sum is σ = 105431040. Its totient is φ = 37346400.

The previous prime is 64233821. The next prime is 64233893. The reversal of 64233873 is 37833246.

64233873 is a `hidden beast` number, since 642 + 3 + 3 + 8 + 7 + 3 = 666.

It is not a de Polignac number, because 64233873 - 2²⁴ = 47456657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64233893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 336208 + ... + 336398.

It is an arithmetic number, because the mean of its divisors is an integer number (2196480).

Almost surely, 2^64233873 is an apocalyptic number.

It is an amenable number.

64233873 is a deficient number, since it is larger than the sum of its proper divisors (41197167).

64233873 is a wasteful number, since it uses less digits than its factorization.

64233873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 327 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 64233873 is about 8014.6037331861. The cubic root of 64233873 is about 400.4866431227.

It can be divided in two parts, 642338 and 73, that added together give a triangular number (642411 = T₁₁₃₃).

The spelling of 64233873 in words is "sixty-four million, two hundred thirty-three thousand, eight hundred seventy-three".