28106136 has 32 divisors (see below), whose sum is σ = 78073200. Its totient is φ = 9368640.

The previous prime is 28106129. The next prime is 28106189. The reversal of 28106136 is 63160182.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 64845 + ... + 65276.

Almost surely, 2^28106136 is an apocalyptic number.

It is an amenable number.

28106136 is an abundant number, since it is smaller than the sum of its proper divisors (49967064).

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

28106136 is a wasteful number, since it uses less digits than its factorization.

28106136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130136 (or 130126 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 28106136 is about 5301.5220456016. The cubic root of 28106136 is about 304.0420936633.

The spelling of 28106136 in words is "twenty-eight million, one hundred six thousand, one hundred thirty-six".