27146857 has 2 divisors, whose sum is σ = 27146858. Its totient is φ = 27146856.

The previous prime is 27146843. The next prime is 27146897. The reversal of 27146857 is 75864172.

It is an a-pointer prime, because the next prime (27146897) can be obtained adding 27146857 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14107536 + 13039321 = 3756^2 + 3611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27146857 is a prime.

It is not a weakly prime, because it can be changed into another prime (27146837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13573428 + 13573429.

It is an arithmetic number, because the mean of its divisors is an integer number (13573429).

Almost surely, 2^27146857 is an apocalyptic number.

It is an amenable number.

27146857 is a deficient number, since it is larger than the sum of its proper divisors (1).

27146857 is an equidigital number, since it uses as much as digits as its factorization.

27146857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 40.

The square root of 27146857 is about 5210.2645806139. The cubic root of 27146857 is about 300.5429316395.

The spelling of 27146857 in words is "twenty-seven million, one hundred forty-six thousand, eight hundred fifty-seven".