32397975 has 36 divisors (see below), whose sum is σ = 60188856. Its totient is φ = 17275680.

The previous prime is 32397947. The next prime is 32397991. The reversal of 32397975 is 57979323.

It is not a de Polignac number, because 32397975 - 2⁵ = 32397943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 32397975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3409 + ... + 8741.

Almost surely, 2^32397975 is an apocalyptic number.

32397975 is a deficient number, since it is larger than the sum of its proper divisors (27790881).

32397975 is an equidigital number, since it uses as much as digits as its factorization.

32397975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5358 (or 5341 counting only the distinct ones).

The product of its digits is 357210, while the sum is 45.

The square root of 32397975 is about 5691.9219074053. The cubic root of 32397975 is about 318.7909290004.

The spelling of 32397975 in words is "thirty-two million, three hundred ninety-seven thousand, nine hundred seventy-five".