27630793 has 2 divisors, whose sum is σ = 27630794. Its totient is φ = 27630792.

The previous prime is 27630791. The next prime is 27630809. The reversal of 27630793 is 39703672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20912329 + 6718464 = 4573^2 + 2592^2 .

It is a cyclic number.

It is not a de Polignac number, because 27630793 - 2¹ = 27630791 is a prime.

Together with 27630791, it forms a pair of twin primes.

It is the 5257-th Hogben number.

It is not a weakly prime, because it can be changed into another prime (27630791) by changing a digit.

It is a nontrivial repunit in base 5256.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13815396 + 13815397.

It is an arithmetic number, because the mean of its divisors is an integer number (13815397).

Almost surely, 2^27630793 is an apocalyptic number.

It is an amenable number.

27630793 is a deficient number, since it is larger than the sum of its proper divisors (1).

27630793 is an equidigital number, since it uses as much as digits as its factorization.

27630793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 27630793 is about 5256.5000713402. The cubic root of 27630793 is about 302.3183090334.

The spelling of 27630793 in words is "twenty-seven million, six hundred thirty thousand, seven hundred ninety-three".