27814649 has 2 divisors, whose sum is σ = 27814650. Its totient is φ = 27814648.

The previous prime is 27814637. The next prime is 27814663. The reversal of 27814649 is 94641872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21529600 + 6285049 = 4640^2 + 2507^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27814649 is a prime.

It is not a weakly prime, because it can be changed into another prime (27810649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13907324 + 13907325.

It is an arithmetic number, because the mean of its divisors is an integer number (13907325).

Almost surely, 2^27814649 is an apocalyptic number.

It is an amenable number.

27814649 is a deficient number, since it is larger than the sum of its proper divisors (1).

27814649 is an equidigital number, since it uses as much as digits as its factorization.

27814649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 27814649 is about 5273.9595182367. The cubic root of 27814649 is about 302.9873718083.

The spelling of 27814649 in words is "twenty-seven million, eight hundred fourteen thousand, six hundred forty-nine".