28136883 has 8 divisors (see below), whose sum is σ = 37887696. Its totient is φ = 18572000.

The previous prime is 28136863. The next prime is 28136903. The reversal of 28136883 is 38863182.

It is an interprime number because it is at equal distance from previous prime (28136863) and next prime (28136903).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28136883 - 2²¹ = 26039731 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 46128 + ... + 46733.

It is an arithmetic number, because the mean of its divisors is an integer number (4735962).

Almost surely, 2^28136883 is an apocalyptic number.

28136883 is a deficient number, since it is larger than the sum of its proper divisors (9750813).

28136883 is a wasteful number, since it uses less digits than its factorization.

28136883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92965.

The product of its digits is 55296, while the sum is 39.

The square root of 28136883 is about 5304.4210805704. The cubic root of 28136883 is about 304.1529232630.

The spelling of 28136883 in words is "twenty-eight million, one hundred thirty-six thousand, eight hundred eighty-three".