27797827 has 2 divisors, whose sum is σ = 27797828. Its totient is φ = 27797826.

The previous prime is 27797753. The next prime is 27797879. The reversal of 27797827 is 72879772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27797827 - 2⁷ = 27797699 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27797327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13898913 + 13898914.

It is an arithmetic number, because the mean of its divisors is an integer number (13898914).

Almost surely, 2^27797827 is an apocalyptic number.

27797827 is a deficient number, since it is larger than the sum of its proper divisors (1).

27797827 is an equidigital number, since it uses as much as digits as its factorization.

27797827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691488, while the sum is 49.

The square root of 27797827 is about 5272.3644600881. The cubic root of 27797827 is about 302.9262783245.

The spelling of 27797827 in words is "twenty-seven million, seven hundred ninety-seven thousand, eight hundred twenty-seven".