27949398 has 32 divisors (see below), whose sum is σ = 57716736. Its totient is φ = 9017568.

The previous prime is 27949381. The next prime is 27949403. The reversal of 27949398 is 89394972.

It is a self number, because there is not a number n which added to its sum of digits gives 27949398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32340 + ... + 33192.

It is an arithmetic number, because the mean of its divisors is an integer number (1803648).

Almost surely, 2^27949398 is an apocalyptic number.

27949398 is an abundant number, since it is smaller than the sum of its proper divisors (29767338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27949398 is a wasteful number, since it uses less digits than its factorization.

27949398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028.

The product of its digits is 979776, while the sum is 51.

The square root of 27949398 is about 5286.7190203377. The cubic root of 27949398 is about 303.4758613159.

The spelling of 27949398 in words is "twenty-seven million, nine hundred forty-nine thousand, three hundred ninety-eight".