27922693 has 2 divisors, whose sum is σ = 27922694. Its totient is φ = 27922692.

The previous prime is 27922673. The next prime is 27922703. The reversal of 27922693 is 39622972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23990404 + 3932289 = 4898^2 + 1983^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27922693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27922603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13961346 + 13961347.

It is an arithmetic number, because the mean of its divisors is an integer number (13961347).

Almost surely, 2^27922693 is an apocalyptic number.

It is an amenable number.

27922693 is a deficient number, since it is larger than the sum of its proper divisors (1).

27922693 is an equidigital number, since it uses as much as digits as its factorization.

27922693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 27922693 is about 5284.1927481877. The cubic root of 27922693 is about 303.3791758058.

The spelling of 27922693 in words is "twenty-seven million, nine hundred twenty-two thousand, six hundred ninety-three".