27976965 has 16 divisors (see below), whose sum is σ = 45855936. Its totient is φ = 14556800.

The previous prime is 27976931. The next prime is 27976997. The reversal of 27976965 is 56967972.

It is not a de Polignac number, because 27976965 - 2¹² = 27972869 is a prime.

It is a super-2 number, since 2×27976965² = 1565421141222450, which contains 22 as substring.

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, 22131 + ... + 23360.

It is an arithmetic number, because the mean of its divisors is an integer number (2865996).

Almost surely, 2^27976965 is an apocalyptic number.

It is an amenable number.

27976965 is a deficient number, since it is larger than the sum of its proper divisors (17878971).

27976965 is a wasteful number, since it uses less digits than its factorization.

27976965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45540.

The product of its digits is 1428840, while the sum is 51.

The square root of 27976965 is about 5289.3255713749. The cubic root of 27976965 is about 303.5756031194.

The spelling of 27976965 in words is "twenty-seven million, nine hundred seventy-six thousand, nine hundred sixty-five".