27479057 has 2 divisors, whose sum is σ = 27479058. Its totient is φ = 27479056.

The previous prime is 27479047. The next prime is 27479063. The reversal of 27479057 is 75097472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19855936 + 7623121 = 4456^2 + 2761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27479057 is a prime.

It is not a weakly prime, because it can be changed into another prime (27479047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13739528 + 13739529.

It is an arithmetic number, because the mean of its divisors is an integer number (13739529).

Almost surely, 2^27479057 is an apocalyptic number.

It is an amenable number.

27479057 is a deficient number, since it is larger than the sum of its proper divisors (1).

27479057 is an equidigital number, since it uses as much as digits as its factorization.

27479057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 27479057 is about 5242.0470238257. The cubic root of 27479057 is about 301.7638937881.

The spelling of 27479057 in words is "twenty-seven million, four hundred seventy-nine thousand, fifty-seven".