27694428 has 24 divisors (see below), whose sum is σ = 68422032. Its totient is φ = 8688384.

The previous prime is 27694409. The next prime is 27694441. The reversal of 27694428 is 82449672.

It is a self number, because there is not a number n which added to its sum of digits gives 27694428.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67675 + ... + 68082.

It is an arithmetic number, because the mean of its divisors is an integer number (2850918).

Almost surely, 2^27694428 is an apocalyptic number.

It is an amenable number.

27694428 is an abundant number, since it is smaller than the sum of its proper divisors (40727604).

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

27694428 is a wasteful number, since it uses less digits than its factorization.

27694428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135781 (or 135779 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 27694428 is about 5262.5495722131. The cubic root of 27694428 is about 302.5502154644.

The spelling of 27694428 in words is "twenty-seven million, six hundred ninety-four thousand, four hundred twenty-eight".