27989298 has 24 divisors (see below), whose sum is σ = 63281088. Its totient is φ = 8923992.

The previous prime is 27989287. The next prime is 27989303. The reversal of 27989298 is 89298972.

27989298 is a `hidden beast` number, since 279 + 89 + 298 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33390 + ... + 34217.

It is an arithmetic number, because the mean of its divisors is an integer number (2636712).

Almost surely, 2^27989298 is an apocalyptic number.

27989298 is an abundant number, since it is smaller than the sum of its proper divisors (35291790).

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

27989298 is a wasteful number, since it uses less digits than its factorization.

27989298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67638 (or 67635 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 27989298 is about 5290.4912815352. The cubic root of 27989298 is about 303.6202046680.

The spelling of 27989298 in words is "twenty-seven million, nine hundred eighty-nine thousand, two hundred ninety-eight".