27398799 has 12 divisors (see below), whose sum is σ = 39840112. Its totient is φ = 18144000.

The previous prime is 27398753. The next prime is 27398803. The reversal of 27398799 is 99789372.

It is not a de Polignac number, because 27398799 - 2²⁰ = 26350223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27398719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8722 + ... + 11439.

Almost surely, 2^27398799 is an apocalyptic number.

27398799 is a deficient number, since it is larger than the sum of its proper divisors (12441313).

27398799 is a wasteful number, since it uses less digits than its factorization.

27398799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20318 (or 20315 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 27398799 is about 5234.3862104358. The cubic root of 27398799 is about 301.4698203334.

The spelling of 27398799 in words is "twenty-seven million, three hundred ninety-eight thousand, seven hundred ninety-nine".