33997090 has 16 divisors (see below), whose sum is σ = 62618688. Its totient is φ = 13282416.

The previous prime is 33997079. The next prime is 33997091. The reversal of 33997090 is 9079933.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (33997091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39102 + ... + 39961.

It is an arithmetic number, because the mean of its divisors is an integer number (3913668).

Almost surely, 2^33997090 is an apocalyptic number.

33997090 is a deficient number, since it is larger than the sum of its proper divisors (28621598).

33997090 is a wasteful number, since it uses less digits than its factorization.

33997090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79113.

The product of its (nonzero) digits is 45927, while the sum is 40.

The square root of 33997090 is about 5830.7023590645. The cubic root of 33997090 is about 323.9519374422.

The spelling of 33997090 in words is "thirty-three million, nine hundred ninety-seven thousand, ninety".