28116574 has 8 divisors (see below), whose sum is σ = 42708960. Its totient is φ = 13880256.

The previous prime is 28116563. The next prime is 28116581. The reversal of 28116574 is 47561182.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88819 + ... + 89134.

It is an arithmetic number, because the mean of its divisors is an integer number (5338620).

Almost surely, 2^28116574 is an apocalyptic number.

28116574 is a deficient number, since it is larger than the sum of its proper divisors (14592386).

28116574 is a wasteful number, since it uses less digits than its factorization.

28116574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178034.

The product of its digits is 13440, while the sum is 34.

The square root of 28116574 is about 5302.5063884921. The cubic root of 28116574 is about 304.0797271845.

The spelling of 28116574 in words is "twenty-eight million, one hundred sixteen thousand, five hundred seventy-four".