27372281 has 2 divisors, whose sum is σ = 27372282. Its totient is φ = 27372280.

The previous prime is 27372263. The next prime is 27372311. The reversal of 27372281 is 18227372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25847056 + 1525225 = 5084^2 + 1235^2 .

It is a cyclic number.

It is not a de Polignac number, because 27372281 - 2¹⁰ = 27371257 is a prime.

It is a super-2 number, since 2×27372281² = 1498483534285922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27372181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13686140 + 13686141.

It is an arithmetic number, because the mean of its divisors is an integer number (13686141).

Almost surely, 2^27372281 is an apocalyptic number.

It is an amenable number.

27372281 is a deficient number, since it is larger than the sum of its proper divisors (1).

27372281 is an equidigital number, since it uses as much as digits as its factorization.

27372281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 32.

The square root of 27372281 is about 5231.8525399709. The cubic root of 27372281 is about 301.3725294849.

The spelling of 27372281 in words is "twenty-seven million, three hundred seventy-two thousand, two hundred eighty-one".