28793793 has 16 divisors (see below), whose sum is σ = 43960320. Its totient is φ = 16422096.

The previous prime is 28793777. The next prime is 28793813. The reversal of 28793793 is 39739782.

It is not a de Polignac number, because 28793793 - 2⁴ = 28793777 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28793293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14146 + ... + 16052.

It is an arithmetic number, because the mean of its divisors is an integer number (2747520).

Almost surely, 2^28793793 is an apocalyptic number.

It is an amenable number.

28793793 is a deficient number, since it is larger than the sum of its proper divisors (15166527).

28793793 is a wasteful number, since it uses less digits than its factorization.

28793793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636.

The product of its digits is 571536, while the sum is 48.

The square root of 28793793 is about 5365.9848117564. The cubic root of 28793793 is about 306.5017506223.

The spelling of 28793793 in words is "twenty-eight million, seven hundred ninety-three thousand, seven hundred ninety-three".