27077381 has 2 divisors, whose sum is σ = 27077382. Its totient is φ = 27077380.

The previous prime is 27077363. The next prime is 27077389. The reversal of 27077381 is 18377072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17926756 + 9150625 = 4234^2 + 3025^2 .

It is a cyclic number.

It is not a de Polignac number, because 27077381 - 2¹⁸ = 26815237 is a prime.

It is a super-2 number, since 2×27077381² = 1466369123638322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27077389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13538690 + 13538691.

It is an arithmetic number, because the mean of its divisors is an integer number (13538691).

Almost surely, 2^27077381 is an apocalyptic number.

It is an amenable number.

27077381 is a deficient number, since it is larger than the sum of its proper divisors (1).

27077381 is an equidigital number, since it uses as much as digits as its factorization.

27077381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 27077381 is about 5203.5930855516. The cubic root of 27077381 is about 300.2863229399.

The spelling of 27077381 in words is "twenty-seven million, seventy-seven thousand, three hundred eighty-one".