32961569 has 2 divisors, whose sum is σ = 32961570. Its totient is φ = 32961568.

The previous prime is 32961563. The next prime is 32961583. The reversal of 32961569 is 96516923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32913169 + 48400 = 5737^2 + 220^2 .

It is an emirp because it is prime and its reverse (96516923) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32961569 is a prime.

It is a super-2 number, since 2×32961569² = 2172930061883522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (32961563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16480784 + 16480785.

It is an arithmetic number, because the mean of its divisors is an integer number (16480785).

Almost surely, 2^32961569 is an apocalyptic number.

It is an amenable number.

32961569 is a deficient number, since it is larger than the sum of its proper divisors (1).

32961569 is an equidigital number, since it uses as much as digits as its factorization.

32961569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 41.

The square root of 32961569 is about 5741.2166828992. The cubic root of 32961569 is about 320.6288707423.

The spelling of 32961569 in words is "thirty-two million, nine hundred sixty-one thousand, five hundred sixty-nine".