28874793 has 8 divisors (see below), whose sum is σ = 38573056. Its totient is φ = 19213200.

The previous prime is 28874761. The next prime is 28874803. The reversal of 28874793 is 39747882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28874793 - 2⁵ = 28874761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28874723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7273 + ... + 10518.

It is an arithmetic number, because the mean of its divisors is an integer number (4821632).

Almost surely, 2^28874793 is an apocalyptic number.

It is an amenable number.

28874793 is a deficient number, since it is larger than the sum of its proper divisors (9698263).

28874793 is a wasteful number, since it uses less digits than its factorization.

28874793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18335.

The product of its digits is 677376, while the sum is 48.

The square root of 28874793 is about 5373.5270539935. The cubic root of 28874793 is about 306.7888888737.

The spelling of 28874793 in words is "twenty-eight million, eight hundred seventy-four thousand, seven hundred ninety-three".