27368813 has 2 divisors, whose sum is σ = 27368814. Its totient is φ = 27368812.

The previous prime is 27368801. The next prime is 27368819. The reversal of 27368813 is 31886372.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16630084 + 10738729 = 4078^2 + 3277^2 .

It is a cyclic number.

It is not a de Polignac number, because 27368813 - 2⁶ = 27368749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27368819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13684406 + 13684407.

It is an arithmetic number, because the mean of its divisors is an integer number (13684407).

Almost surely, 2^27368813 is an apocalyptic number.

It is an amenable number.

27368813 is a deficient number, since it is larger than the sum of its proper divisors (1).

27368813 is an equidigital number, since it uses as much as digits as its factorization.

27368813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 27368813 is about 5231.5210981129. The cubic root of 27368813 is about 301.3598012304.

The spelling of 27368813 in words is "twenty-seven million, three hundred sixty-eight thousand, eight hundred thirteen".