27731441 has 2 divisors, whose sum is σ = 27731442. Its totient is φ = 27731440.

The previous prime is 27731423. The next prime is 27731447. The reversal of 27731441 is 14413772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25715041 + 2016400 = 5071^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 27731441 - 2⁶ = 27731377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27731447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13865720 + 13865721.

It is an arithmetic number, because the mean of its divisors is an integer number (13865721).

Almost surely, 2^27731441 is an apocalyptic number.

It is an amenable number.

27731441 is a deficient number, since it is larger than the sum of its proper divisors (1).

27731441 is an equidigital number, since it uses as much as digits as its factorization.

27731441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 29.

The square root of 27731441 is about 5266.0650394768. The cubic root of 27731441 is about 302.6849393888.

The spelling of 27731441 in words is "twenty-seven million, seven hundred thirty-one thousand, four hundred forty-one".