33318089 has 6 divisors (see below), whose sum is σ = 38757834. Its totient is φ = 28558320.

The previous prime is 33318073. The next prime is 33318091. The reversal of 33318089 is 98081333.

It can be written as a sum of positive squares in only one way, i.e., 20322064 + 12996025 = 4508^2 + 3605^2 .

It is not a de Polignac number, because 33318089 - 2⁴ = 33318073 is a prime.

It is a super-2 number, since 2×33318089² = 2220190109223842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33318029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339932 + ... + 340029.

It is an arithmetic number, because the mean of its divisors is an integer number (6459639).

Almost surely, 2^33318089 is an apocalyptic number.

It is an amenable number.

33318089 is a deficient number, since it is larger than the sum of its proper divisors (5439745).

33318089 is an equidigital number, since it uses as much as digits as its factorization.

33318089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679975 (or 679968 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 33318089 is about 5772.1823429272. The cubic root of 33318089 is about 321.7807265810.

The spelling of 33318089 in words is "thirty-three million, three hundred eighteen thousand, eighty-nine".