27845449 has 2 divisors, whose sum is σ = 27845450. Its totient is φ = 27845448.

The previous prime is 27845429. The next prime is 27845513. The reversal of 27845449 is 94454872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27092025 + 753424 = 5205^2 + 868^2 .

It is a cyclic number.

It is not a de Polignac number, because 27845449 - 2²¹ = 25748297 is a prime.

It is not a weakly prime, because it can be changed into another prime (27845429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13922724 + 13922725.

It is an arithmetic number, because the mean of its divisors is an integer number (13922725).

Almost surely, 2^27845449 is an apocalyptic number.

It is an amenable number.

27845449 is a deficient number, since it is larger than the sum of its proper divisors (1).

27845449 is an equidigital number, since it uses as much as digits as its factorization.

27845449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 43.

The square root of 27845449 is about 5276.8787175754. The cubic root of 27845449 is about 303.0991662399.

The spelling of 27845449 in words is "twenty-seven million, eight hundred forty-five thousand, four hundred forty-nine".