32972939 has 4 divisors (see below), whose sum is σ = 33015624. Its totient is φ = 32930256.

The previous prime is 32972921. The next prime is 32972969. The reversal of 32972939 is 93927923.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 32972939 - 2⁸ = 32972683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32972939.

It is not an unprimeable number, because it can be changed into a prime (32972909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20162 + ... + 21735.

It is an arithmetic number, because the mean of its divisors is an integer number (8253906).

Almost surely, 2^32972939 is an apocalyptic number.

32972939 is a deficient number, since it is larger than the sum of its proper divisors (42685).

32972939 is an equidigital number, since it uses as much as digits as its factorization.

32972939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42684.

The product of its digits is 183708, while the sum is 44.

The square root of 32972939 is about 5742.2068057499. The cubic root of 32972939 is about 320.6657331781.

The spelling of 32972939 in words is "thirty-two million, nine hundred seventy-two thousand, nine hundred thirty-nine".