27883998 has 24 divisors (see below), whose sum is σ = 61183200. Its totient is φ = 9176544.

The previous prime is 27883997. The next prime is 27884011. The reversal of 27883998 is 89938872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27883991) 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, 8383 + ... + 11226.

It is an arithmetic number, because the mean of its divisors is an integer number (2549300).

Almost surely, 2^27883998 is an apocalyptic number.

27883998 is an abundant number, since it is smaller than the sum of its proper divisors (33299202).

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

27883998 is a wasteful number, since it uses less digits than its factorization.

27883998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19696 (or 19693 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 27883998 is about 5280.5300870272. The cubic root of 27883998 is about 303.2389710375.

It can be divided in two parts, 2788 and 3998, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 27883998 in words is "twenty-seven million, eight hundred eighty-three thousand, nine hundred ninety-eight".