27977896 has 16 divisors (see below), whose sum is σ = 52924500. Its totient is φ = 13864704.

The previous prime is 27977893. The next prime is 27977897. The reversal of 27977896 is 69877972.

It can be written as a sum of positive squares in 2 ways, for example, as 27941796 + 36100 = 5286^2 + 190^2 .

It is not an unprimeable number, because it can be changed into a prime (27977893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14571 + ... + 16378.

Almost surely, 2^27977896 is an apocalyptic number.

It is an amenable number.

27977896 is a deficient number, since it is larger than the sum of its proper divisors (24946604).

27977896 is a wasteful number, since it uses less digits than its factorization.

27977896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31068 (or 31064 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 55.

The square root of 27977896 is about 5289.4135780822. The cubic root of 27977896 is about 303.5789704819.

It can be divided in two parts, 2797789 and 6, that added together give a triangular number (2797795 = T₂₃₆₅).

The spelling of 27977896 in words is "twenty-seven million, nine hundred seventy-seven thousand, eight hundred ninety-six".