27568969 has 2 divisors, whose sum is σ = 27568970. Its totient is φ = 27568968.

The previous prime is 27568963. The next prime is 27568991. The reversal of 27568969 is 96986572.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22924944 + 4644025 = 4788^2 + 2155^2 .

It is a cyclic number.

It is not a de Polignac number, because 27568969 - 2¹³ = 27560777 is a prime.

It is a super-2 number, since 2×27568969² = 1520096103445922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27568963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13784484 + 13784485.

It is an arithmetic number, because the mean of its divisors is an integer number (13784485).

Almost surely, 2^27568969 is an apocalyptic number.

It is an amenable number.

27568969 is a deficient number, since it is larger than the sum of its proper divisors (1).

27568969 is an equidigital number, since it uses as much as digits as its factorization.

27568969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 27568969 is about 5250.6160590925. The cubic root of 27568969 is about 302.0926612144.

The spelling of 27568969 in words is "twenty-seven million, five hundred sixty-eight thousand, nine hundred sixty-nine".