32421875 has 18 divisors (see below), whose sum is σ = 41015604. Its totient is φ = 25625000.

The previous prime is 32421863. The next prime is 32421901. The reversal of 32421875 is 57812423.

It is not a de Polignac number, because 32421875 - 2⁴ = 32421859 is a prime.

It is a Duffinian number.

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 17 ways as a sum of consecutive naturals, for example, 390584 + ... + 390666.

Almost surely, 2^32421875 is an apocalyptic number.

32421875 is a deficient number, since it is larger than the sum of its proper divisors (8593729).

32421875 is an frugal number, since it uses more digits than its factorization.

32421875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 88 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 32421875 is about 5694.0209869652. The cubic root of 32421875 is about 318.8693004668.

The spelling of 32421875 in words is "thirty-two million, four hundred twenty-one thousand, eight hundred seventy-five".