27998274 has 32 divisors (see below), whose sum is σ = 57435840. Its totient is φ = 9096192.

The previous prime is 27998263. The next prime is 27998287. The reversal of 27998274 is 47289972.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42157 + ... + 42815.

It is an arithmetic number, because the mean of its divisors is an integer number (1794870).

Almost surely, 2^27998274 is an apocalyptic number.

27998274 is an abundant number, since it is smaller than the sum of its proper divisors (29437566).

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

27998274 is a wasteful number, since it uses less digits than its factorization.

27998274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834.

The product of its digits is 508032, while the sum is 48.

The square root of 27998274 is about 5291.3395279456. The cubic root of 27998274 is about 303.6526575920.

The spelling of 27998274 in words is "twenty-seven million, nine hundred ninety-eight thousand, two hundred seventy-four".