27214813 has 2 divisors, whose sum is σ = 27214814. Its totient is φ = 27214812.

The previous prime is 27214801. The next prime is 27214843. The reversal of 27214813 is 31841272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20548089 + 6666724 = 4533^2 + 2582^2 .

It is a cyclic number.

It is not a de Polignac number, because 27214813 - 2⁹ = 27214301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27214843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13607406 + 13607407.

It is an arithmetic number, because the mean of its divisors is an integer number (13607407).

Almost surely, 2^27214813 is an apocalyptic number.

It is an amenable number.

27214813 is a deficient number, since it is larger than the sum of its proper divisors (1).

27214813 is an equidigital number, since it uses as much as digits as its factorization.

27214813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 28.

The square root of 27214813 is about 5216.7818624129. The cubic root of 27214813 is about 300.7935030297.

It can be divided in two parts, 27 and 214813, that added together give a triangular number (214840 = T₆₅₅).

The spelling of 27214813 in words is "twenty-seven million, two hundred fourteen thousand, eight hundred thirteen".