27896931 has 12 divisors (see below), whose sum is σ = 41595840. Its totient is φ = 17997840.

The previous prime is 27896917. The next prime is 27896963. The reversal of 27896931 is 13969872.

It is not a de Polignac number, because 27896931 - 2⁶ = 27896867 is a prime.

It is a super-2 number, since 2×27896931² = 1556477518437522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27896131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49716 + ... + 50273.

It is an arithmetic number, because the mean of its divisors is an integer number (3466320).

Almost surely, 2^27896931 is an apocalyptic number.

27896931 is a deficient number, since it is larger than the sum of its proper divisors (13698909).

27896931 is a wasteful number, since it uses less digits than its factorization.

27896931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100026 (or 100023 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 27896931 is about 5281.7545380300. The cubic root of 27896931 is about 303.2858459923.

The spelling of 27896931 in words is "twenty-seven million, eight hundred ninety-six thousand, nine hundred thirty-one".