28179793 has 16 divisors (see below), whose sum is σ = 30960000. Its totient is φ = 25546752.

The previous prime is 28179779. The next prime is 28179821. The reversal of 28179793 is 39797182.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28179793 - 2¹⁷ = 28048721 is a prime.

It is a Duffinian number.

Its product of digits (190512) is a multiple of the sum of its prime divisors (504).

It is not an unprimeable number, because it can be changed into a prime (28179733) 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, 109521 + ... + 109777.

It is an arithmetic number, because the mean of its divisors is an integer number (1935000).

Almost surely, 2^28179793 is an apocalyptic number.

It is an amenable number.

28179793 is a deficient number, since it is larger than the sum of its proper divisors (2780207).

28179793 is a wasteful number, since it uses less digits than its factorization.

28179793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504.

The product of its digits is 190512, while the sum is 46.

The square root of 28179793 is about 5308.4642788663. The cubic root of 28179793 is about 304.3074603167.

The spelling of 28179793 in words is "twenty-eight million, one hundred seventy-nine thousand, seven hundred ninety-three".