28936134 has 12 divisors (see below), whose sum is σ = 62694996. Its totient is φ = 9645372.

The previous prime is 28936133. The next prime is 28936151. The reversal of 28936134 is 43163982.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28936133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 803764 + ... + 803799.

It is an arithmetic number, because the mean of its divisors is an integer number (5224583).

Almost surely, 2^28936134 is an apocalyptic number.

28936134 is an abundant number, since it is smaller than the sum of its proper divisors (33758862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28936134 is a wasteful number, since it uses less digits than its factorization.

28936134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607571 (or 1607568 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 28936134 is about 5379.2317295316. The cubic root of 28936134 is about 307.0059804951.

The spelling of 28936134 in words is "twenty-eight million, nine hundred thirty-six thousand, one hundred thirty-four".