28817134 has 16 divisors (see below), whose sum is σ = 44403840. Its totient is φ = 14020920.

The previous prime is 28817101. The next prime is 28817177. The reversal of 28817134 is 43171882.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28817134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10969 + ... + 13339.

It is an arithmetic number, because the mean of its divisors is an integer number (2775240).

Almost surely, 2^28817134 is an apocalyptic number.

28817134 is a deficient number, since it is larger than the sum of its proper divisors (15586706).

28817134 is a wasteful number, since it uses less digits than its factorization.

28817134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535.

The product of its digits is 10752, while the sum is 34.

The square root of 28817134 is about 5368.1592748353. The cubic root of 28817134 is about 306.5845476929.

The spelling of 28817134 in words is "twenty-eight million, eight hundred seventeen thousand, one hundred thirty-four".