27298993 has 2 divisors, whose sum is σ = 27298994. Its totient is φ = 27298992.

The previous prime is 27298981. The next prime is 27299021. The reversal of 27298993 is 39989272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17363889 + 9935104 = 4167^2 + 3152^2 .

It is a cyclic number.

It is not a de Polignac number, because 27298993 - 2⁵ = 27298961 is a prime.

It is not a weakly prime, because it can be changed into another prime (27298393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13649496 + 13649497.

It is an arithmetic number, because the mean of its divisors is an integer number (13649497).

Almost surely, 2^27298993 is an apocalyptic number.

It is an amenable number.

27298993 is a deficient number, since it is larger than the sum of its proper divisors (1).

27298993 is an equidigital number, since it uses as much as digits as its factorization.

27298993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 49.

The square root of 27298993 is about 5224.8438254172. The cubic root of 27298993 is about 301.1033187992.

The spelling of 27298993 in words is "twenty-seven million, two hundred ninety-eight thousand, nine hundred ninety-three".