33115972 has 12 divisors (see below), whose sum is σ = 58039660. Its totient is φ = 16533216.

The previous prime is 33115969. The next prime is 33115991. The reversal of 33115972 is 27951133.

It can be written as a sum of positive squares in 2 ways, for example, as 16273156 + 16842816 = 4034^2 + 4104^2 .

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, 3003 + ... + 8674.

Almost surely, 2^33115972 is an apocalyptic number.

It is an amenable number.

33115972 is a deficient number, since it is larger than the sum of its proper divisors (24923688).

33115972 is a wasteful number, since it uses less digits than its factorization.

33115972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12390 (or 12388 counting only the distinct ones).

The product of its digits is 5670, while the sum is 31.

The square root of 33115972 is about 5754.6478606427. The cubic root of 33115972 is about 321.1287352875.

The spelling of 33115972 in words is "thirty-three million, one hundred fifteen thousand, nine hundred seventy-two".