27997926 has 32 divisors (see below), whose sum is σ = 61433856. Its totient is φ = 8436000.

The previous prime is 27997903. The next prime is 27997943. The reversal of 27997926 is 62979972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11496 + ... + 13716.

It is an arithmetic number, because the mean of its divisors is an integer number (1919808).

Almost surely, 2^27997926 is an apocalyptic number.

27997926 is an abundant number, since it is smaller than the sum of its proper divisors (33435930).

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

27997926 is a wasteful number, since it uses less digits than its factorization.

27997926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428.

The product of its digits is 857304, while the sum is 51.

The square root of 27997926 is about 5291.3066439208. The cubic root of 27997926 is about 303.6513995197.

The spelling of 27997926 in words is "twenty-seven million, nine hundred ninety-seven thousand, nine hundred twenty-six".