32972791 has 2 divisors, whose sum is σ = 32972792. Its totient is φ = 32972790.

The previous prime is 32972767. The next prime is 32972839. The reversal of 32972791 is 19727923.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32972791 - 2⁹ = 32972279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32972491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16486395 + 16486396.

It is an arithmetic number, because the mean of its divisors is an integer number (16486396).

Almost surely, 2^32972791 is an apocalyptic number.

32972791 is a deficient number, since it is larger than the sum of its proper divisors (1).

32972791 is an equidigital number, since it uses as much as digits as its factorization.

32972791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 40.

The square root of 32972791 is about 5742.1939187039. The cubic root of 32972791 is about 320.6652534049.

The spelling of 32972791 in words is "thirty-two million, nine hundred seventy-two thousand, seven hundred ninety-one".