28923874 has 8 divisors (see below), whose sum is σ = 49583808. Its totient is φ = 12395940.

The previous prime is 28923859. The next prime is 28923877. The reversal of 28923874 is 47832982.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28923874.

It is not an unprimeable number, because it can be changed into a prime (28923877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032982 + ... + 1033009.

It is an arithmetic number, because the mean of its divisors is an integer number (6197976).

Almost surely, 2^28923874 is an apocalyptic number.

28923874 is a deficient number, since it is larger than the sum of its proper divisors (20659934).

28923874 is a wasteful number, since it uses less digits than its factorization.

28923874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066000.

The product of its digits is 193536, while the sum is 43.

The square root of 28923874 is about 5378.0920408636. The cubic root of 28923874 is about 306.9626157409.

The spelling of 28923874 in words is "twenty-eight million, nine hundred twenty-three thousand, eight hundred seventy-four".