28934158 has 16 divisors (see below), whose sum is σ = 47654064. Its totient is φ = 13066560.

The previous prime is 28934149. The next prime is 28934179. The reversal of 28934158 is 85143982.

It is a self number, because there is not a number n which added to its sum of digits gives 28934158.

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, 735 + ... + 7642.

It is an arithmetic number, because the mean of its divisors is an integer number (2978379).

Almost surely, 2^28934158 is an apocalyptic number.

28934158 is a deficient number, since it is larger than the sum of its proper divisors (18719906).

28934158 is a wasteful number, since it uses less digits than its factorization.

28934158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8547.

The product of its digits is 69120, while the sum is 40.

The square root of 28934158 is about 5379.0480570450. The cubic root of 28934158 is about 306.9989920284.

It can be divided in two parts, 28934 and 158, that added together give a palindrome (29092).

The spelling of 28934158 in words is "twenty-eight million, nine hundred thirty-four thousand, one hundred fifty-eight".