27137893 has 2 divisors, whose sum is σ = 27137894. Its totient is φ = 27137892.

The previous prime is 27137867. The next prime is 27137911. The reversal of 27137893 is 39873172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25070049 + 2067844 = 5007^2 + 1438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27137893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27137393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13568946 + 13568947.

It is an arithmetic number, because the mean of its divisors is an integer number (13568947).

Almost surely, 2^27137893 is an apocalyptic number.

It is an amenable number.

27137893 is a deficient number, since it is larger than the sum of its proper divisors (1).

27137893 is an equidigital number, since it uses as much as digits as its factorization.

27137893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 27137893 is about 5209.4042845608. The cubic root of 27137893 is about 300.5098478412.

The spelling of 27137893 in words is "twenty-seven million, one hundred thirty-seven thousand, eight hundred ninety-three".