27699361 has 2 divisors, whose sum is σ = 27699362. Its totient is φ = 27699360.

The previous prime is 27699323. The next prime is 27699367. The reversal of 27699361 is 16399672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19633761 + 8065600 = 4431^2 + 2840^2 .

It is a cyclic number.

It is not a de Polignac number, because 27699361 - 2⁷ = 27699233 is a prime.

It is not a weakly prime, because it can be changed into another prime (27699367) 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, 13849680 + 13849681.

It is an arithmetic number, because the mean of its divisors is an integer number (13849681).

Almost surely, 2^27699361 is an apocalyptic number.

It is an amenable number.

27699361 is a deficient number, since it is larger than the sum of its proper divisors (1).

27699361 is an equidigital number, since it uses as much as digits as its factorization.

27699361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 43.

The square root of 27699361 is about 5263.0182405156. The cubic root of 27699361 is about 302.5681780621.

The spelling of 27699361 in words is "twenty-seven million, six hundred ninety-nine thousand, three hundred sixty-one".