32909081 has 2 divisors, whose sum is σ = 32909082. Its totient is φ = 32909080.

The previous prime is 32909077. The next prime is 32909089. The reversal of 32909081 is 18090923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30349081 + 2560000 = 5509^2 + 1600^2 .

It is an emirp because it is prime and its reverse (18090923) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32909081 - 2² = 32909077 is a prime.

It is a super-2 number, since 2×32909081² = 2166015224529122, 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 (32909089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16454540 + 16454541.

It is an arithmetic number, because the mean of its divisors is an integer number (16454541).

Almost surely, 2^32909081 is an apocalyptic number.

It is an amenable number.

32909081 is a deficient number, since it is larger than the sum of its proper divisors (1).

32909081 is an equidigital number, since it uses as much as digits as its factorization.

32909081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 32909081 is about 5736.6437051642. The cubic root of 32909081 is about 320.4585905290.

The spelling of 32909081 in words is "thirty-two million, nine hundred nine thousand, eighty-one".