27460813 has 2 divisors, whose sum is σ = 27460814. Its totient is φ = 27460812.

The previous prime is 27460787. The next prime is 27460847. The reversal of 27460813 is 31806472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27227524 + 233289 = 5218^2 + 483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27460813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27460313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13730406 + 13730407.

It is an arithmetic number, because the mean of its divisors is an integer number (13730407).

Almost surely, 2^27460813 is an apocalyptic number.

It is an amenable number.

27460813 is a deficient number, since it is larger than the sum of its proper divisors (1).

27460813 is an equidigital number, since it uses as much as digits as its factorization.

27460813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 27460813 is about 5240.3065750011. The cubic root of 27460813 is about 301.6970962592.

The spelling of 27460813 in words is "twenty-seven million, four hundred sixty thousand, eight hundred thirteen".