33928764 has 12 divisors (see below), whose sum is σ = 79167144. Its totient is φ = 11309584.

The previous prime is 33928759. The next prime is 33928789. The reversal of 33928764 is 46782933.

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

It is a super-2 number, since 2×33928764² = 2302322053135392, 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, 1413687 + ... + 1413710.

It is an arithmetic number, because the mean of its divisors is an integer number (6597262).

Almost surely, 2^33928764 is an apocalyptic number.

It is an amenable number.

33928764 is an abundant number, since it is smaller than the sum of its proper divisors (45238380).

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

33928764 is a wasteful number, since it uses less digits than its factorization.

33928764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827404 (or 2827402 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 33928764 is about 5824.8402553203. The cubic root of 33928764 is about 323.7347699837.

The spelling of 33928764 in words is "thirty-three million, nine hundred twenty-eight thousand, seven hundred sixty-four".