33899081 has 2 divisors, whose sum is σ = 33899082. Its totient is φ = 33899080.

The previous prime is 33899077. The next prime is 33899113. The reversal of 33899081 is 18099833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33640000 + 259081 = 5800^2 + 509^2 .

It is a cyclic number.

It is not a de Polignac number, because 33899081 - 2² = 33899077 is a prime.

It is a super-2 number, since 2×33899081² = 2298295385289122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33899381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16949540 + 16949541.

It is an arithmetic number, because the mean of its divisors is an integer number (16949541).

Almost surely, 2^33899081 is an apocalyptic number.

It is an amenable number.

33899081 is a deficient number, since it is larger than the sum of its proper divisors (1).

33899081 is an equidigital number, since it uses as much as digits as its factorization.

33899081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 33899081 is about 5822.2917309252. The cubic root of 33899081 is about 323.6403346461.

The spelling of 33899081 in words is "thirty-three million, eight hundred ninety-nine thousand, eighty-one".