27887394 has 16 divisors (see below), whose sum is σ = 56085120. Its totient is φ = 9244080.

The previous prime is 27887393. The next prime is 27887407. The reversal of 27887394 is 49378872.

It is a super-2 number, since 2×27887394² = 1555413488222472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27887393) 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 7 ways as a sum of consecutive naturals, for example, 11754 + ... + 13925.

It is an arithmetic number, because the mean of its divisors is an integer number (3505320).

Almost surely, 2^27887394 is an apocalyptic number.

27887394 is an abundant number, since it is smaller than the sum of its proper divisors (28197726).

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

27887394 is a wasteful number, since it uses less digits than its factorization.

27887394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25865.

The product of its digits is 677376, while the sum is 48.

The square root of 27887394 is about 5280.8516358633. The cubic root of 27887394 is about 303.2512810578.

The spelling of 27887394 in words is "twenty-seven million, eight hundred eighty-seven thousand, three hundred ninety-four".