27079813 has 2 divisors, whose sum is σ = 27079814. Its totient is φ = 27079812.

The previous prime is 27079799. The next prime is 27079837. The reversal of 27079813 is 31897072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26697889 + 381924 = 5167^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 27079813 - 2¹⁷ = 26948741 is a prime.

It is a super-2 number, since 2×27079813² = 1466632544229938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27076813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13539906 + 13539907.

It is an arithmetic number, because the mean of its divisors is an integer number (13539907).

Almost surely, 2^27079813 is an apocalyptic number.

It is an amenable number.

27079813 is a deficient number, since it is larger than the sum of its proper divisors (1).

27079813 is an equidigital number, since it uses as much as digits as its factorization.

27079813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 27079813 is about 5203.8267649875. The cubic root of 27079813 is about 300.2953129093.

The spelling of 27079813 in words is "twenty-seven million, seventy-nine thousand, eight hundred thirteen".