27147998 has 16 divisors (see below), whose sum is σ = 43509120. Its totient is φ = 12666456.

The previous prime is 27147983. The next prime is 27148001. The reversal of 27147998 is 89974172.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2786 + ... + 7877.

It is an arithmetic number, because the mean of its divisors is an integer number (2719320).

Almost surely, 2^27147998 is an apocalyptic number.

27147998 is a deficient number, since it is larger than the sum of its proper divisors (16361122).

27147998 is a wasteful number, since it uses less digits than its factorization.

27147998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10751.

The product of its digits is 254016, while the sum is 47.

The square root of 27147998 is about 5210.3740748626. The cubic root of 27147998 is about 300.5471422519.

The spelling of 27147998 in words is "twenty-seven million, one hundred forty-seven thousand, nine hundred ninety-eight".