27426613 has 2 divisors, whose sum is σ = 27426614. Its totient is φ = 27426612.

The previous prime is 27426551. The next prime is 27426629. The reversal of 27426613 is 31662472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25472209 + 1954404 = 5047^2 + 1398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27426613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27426713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13713306 + 13713307.

It is an arithmetic number, because the mean of its divisors is an integer number (13713307).

Almost surely, 2^27426613 is an apocalyptic number.

It is an amenable number.

27426613 is a deficient number, since it is larger than the sum of its proper divisors (1).

27426613 is an equidigital number, since it uses as much as digits as its factorization.

27426613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 31.

The square root of 27426613 is about 5237.0423905101. The cubic root of 27426613 is about 301.5717985965.

The spelling of 27426613 in words is "twenty-seven million, four hundred twenty-six thousand, six hundred thirteen".