27128934 has 24 divisors (see below), whose sum is σ = 67176720. Its totient is φ = 7751088.

The previous prime is 27128929. The next prime is 27128939. The reversal of 27128934 is 43982172.

It is an interprime number because it is at equal distance from previous prime (27128929) and next prime (27128939).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27128939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107529 + ... + 107780.

It is an arithmetic number, because the mean of its divisors is an integer number (2799030).

Almost surely, 2^27128934 is an apocalyptic number.

27128934 is an abundant number, since it is smaller than the sum of its proper divisors (40047786).

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

27128934 is a wasteful number, since it uses less digits than its factorization.

27128934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215324 (or 215321 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 27128934 is about 5208.5443263929. The cubic root of 27128934 is about 300.4767752166.

The spelling of 27128934 in words is "twenty-seven million, one hundred twenty-eight thousand, nine hundred thirty-four".