33897372 has 12 divisors (see below), whose sum is σ = 79093896. Its totient is φ = 11299120.

The previous prime is 33897319. The next prime is 33897397. The reversal of 33897372 is 27379833.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33897372² = 2298063657012768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412379 + ... + 1412402.

It is an arithmetic number, because the mean of its divisors is an integer number (6591158).

Almost surely, 2^33897372 is an apocalyptic number.

It is an amenable number.

33897372 is an abundant number, since it is smaller than the sum of its proper divisors (45196524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33897372 is a wasteful number, since it uses less digits than its factorization.

33897372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824788 (or 2824786 counting only the distinct ones).

The product of its digits is 190512, while the sum is 42.

The square root of 33897372 is about 5822.1449655604. The cubic root of 33897372 is about 323.6348958494.

The spelling of 33897372 in words is "thirty-three million, eight hundred ninety-seven thousand, three hundred seventy-two".