27372769 has 2 divisors, whose sum is σ = 27372770. Its totient is φ = 27372768.

The previous prime is 27372767. The next prime is 27372773. The reversal of 27372769 is 96727372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14326225 + 13046544 = 3785^2 + 3612^2 .

It is a cyclic number.

It is not a de Polignac number, because 27372769 - 2¹ = 27372767 is a prime.

It is a super-2 number, since 2×27372769² = 1498536965454722, which contains 22 as substring.

Together with 27372767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27372767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13686384 + 13686385.

It is an arithmetic number, because the mean of its divisors is an integer number (13686385).

Almost surely, 2^27372769 is an apocalyptic number.

It is an amenable number.

27372769 is a deficient number, since it is larger than the sum of its proper divisors (1).

27372769 is an equidigital number, since it uses as much as digits as its factorization.

27372769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 43.

The square root of 27372769 is about 5231.8991771631. The cubic root of 27372769 is about 301.3743204563.

The spelling of 27372769 in words is "twenty-seven million, three hundred seventy-two thousand, seven hundred sixty-nine".