27776428 has 12 divisors (see below), whose sum is σ = 48667192. Its totient is φ = 13871520.

The previous prime is 27776383. The next prime is 27776429. The reversal of 27776428 is 82467772.

It is not an unprimeable number, because it can be changed into a prime (27776429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43 + ... + 7453.

Almost surely, 2^27776428 is an apocalyptic number.

It is an amenable number.

27776428 is a deficient number, since it is larger than the sum of its proper divisors (20890764).

27776428 is a wasteful number, since it uses less digits than its factorization.

27776428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8352 (or 8350 counting only the distinct ones).

The product of its digits is 263424, while the sum is 43.

The square root of 27776428 is about 5270.3347142283. The cubic root of 27776428 is about 302.8485266412.

The spelling of 27776428 in words is "twenty-seven million, seven hundred seventy-six thousand, four hundred twenty-eight".