28793532 has 12 divisors (see below), whose sum is σ = 67184936. Its totient is φ = 9597840.

The previous prime is 28793497. The next prime is 28793551. The reversal of 28793532 is 23539782.

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

It is a hoax number, since the sum of its digits (39) 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, 1199719 + ... + 1199742.

Almost surely, 2^28793532 is an apocalyptic number.

It is an amenable number.

28793532 is an abundant number, since it is smaller than the sum of its proper divisors (38391404).

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

28793532 is a wasteful number, since it uses less digits than its factorization.

28793532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399468 (or 2399466 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 28793532 is about 5365.9604918411. The cubic root of 28793532 is about 306.5008245292.

The spelling of 28793532 in words is "twenty-eight million, seven hundred ninety-three thousand, five hundred thirty-two".