27998276 has 12 divisors (see below), whose sum is σ = 50039808. Its totient is φ = 13701192.

The previous prime is 27998263. The next prime is 27998287. The reversal of 27998276 is 67289972.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 74276 + ... + 74651.

It is an arithmetic number, because the mean of its divisors is an integer number (4169984).

Almost surely, 2^27998276 is an apocalyptic number.

It is an amenable number.

27998276 is a deficient number, since it is larger than the sum of its proper divisors (22041532).

27998276 is a wasteful number, since it uses less digits than its factorization.

27998276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148978 (or 148976 counting only the distinct ones).

The product of its digits is 762048, while the sum is 50.

The square root of 27998276 is about 5291.3397169337. The cubic root of 27998276 is about 303.6526648223.

The spelling of 27998276 in words is "twenty-seven million, nine hundred ninety-eight thousand, two hundred seventy-six".