28292764 has 12 divisors (see below), whose sum is σ = 49649824. Its totient is φ = 14107104.

The previous prime is 28292749. The next prime is 28292773. The reversal of 28292764 is 46729282.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 8169 + ... + 11104.

Almost surely, 2^28292764 is an apocalyptic number.

It is an amenable number.

28292764 is a deficient number, since it is larger than the sum of its proper divisors (21357060).

28292764 is a wasteful number, since it uses less digits than its factorization.

28292764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19644 (or 19642 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 28292764 is about 5319.0942838043. The cubic root of 28292764 is about 304.7135678718.

The spelling of 28292764 in words is "twenty-eight million, two hundred ninety-two thousand, seven hundred sixty-four".