28136853 has 24 divisors (see below), whose sum is σ = 45302400. Its totient is φ = 16723584.

The previous prime is 28136837. The next prime is 28136861. The reversal of 28136853 is 35863182.

It is not a de Polignac number, because 28136853 - 2⁴ = 28136837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28136813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1933 + ... + 7746.

It is an arithmetic number, because the mean of its divisors is an integer number (1887600).

Almost surely, 2^28136853 is an apocalyptic number.

It is an amenable number.

28136853 is a deficient number, since it is larger than the sum of its proper divisors (17165547).

28136853 is a wasteful number, since it uses less digits than its factorization.

28136853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9721 (or 9718 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 28136853 is about 5304.4182527399. The cubic root of 28136853 is about 304.1528151654.

The spelling of 28136853 in words is "twenty-eight million, one hundred thirty-six thousand, eight hundred fifty-three".