32965991 has 2 divisors, whose sum is σ = 32965992. Its totient is φ = 32965990.

The previous prime is 32965981. The next prime is 32966033. The reversal of 32965991 is 19956923.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32965991 is a prime.

It is a super-2 number, since 2×32965991² = 2173513125224162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32965921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16482995 + 16482996.

It is an arithmetic number, because the mean of its divisors is an integer number (16482996).

Almost surely, 2^32965991 is an apocalyptic number.

32965991 is a deficient number, since it is larger than the sum of its proper divisors (1).

32965991 is an equidigital number, since it uses as much as digits as its factorization.

32965991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131220, while the sum is 44.

The square root of 32965991 is about 5741.6017799914. The cubic root of 32965991 is about 320.6432082218.

The spelling of 32965991 in words is "thirty-two million, nine hundred sixty-five thousand, nine hundred ninety-one".