27889426 has 4 divisors (see below), whose sum is σ = 41834142. Its totient is φ = 13944712.

The previous prime is 27889399. The next prime is 27889427. The reversal of 27889426 is 62498872.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26677225 + 1212201 = 5165^2 + 1101^2 .

It is not an unprimeable number, because it can be changed into a prime (27889427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6972355 + ... + 6972358.

Almost surely, 2^27889426 is an apocalyptic number.

27889426 is a deficient number, since it is larger than the sum of its proper divisors (13944716).

27889426 is a wasteful number, since it uses less digits than its factorization.

27889426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13944715.

The product of its digits is 387072, while the sum is 46.

The square root of 27889426 is about 5281.0440255692. The cubic root of 27889426 is about 303.2586462929.

The spelling of 27889426 in words is "twenty-seven million, eight hundred eighty-nine thousand, four hundred twenty-six".