27391738 has 12 divisors (see below), whose sum is σ = 45162810. Its totient is φ = 12450680.

The previous prime is 27391723. The next prime is 27391751. The reversal of 27391738 is 83719372.

It can be written as a sum of positive squares in only one way, i.e., 24176889 + 3214849 = 4917^2 + 1793^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27391738.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56353 + ... + 56836.

Almost surely, 2^27391738 is an apocalyptic number.

27391738 is a deficient number, since it is larger than the sum of its proper divisors (17771072).

27391738 is a wasteful number, since it uses less digits than its factorization.

27391738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113213 (or 113202 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 27391738 is about 5233.7116848371. The cubic root of 27391738 is about 301.4439206423.

The spelling of 27391738 in words is "twenty-seven million, three hundred ninety-one thousand, seven hundred thirty-eight".