27676428 has 96 divisors (see below), whose sum is σ = 73758720. Its totient is φ = 8017920.

The previous prime is 27676403. The next prime is 27676447. The reversal of 27676428 is 82467672.

It is a self number, because there is not a number n which added to its sum of digits gives 27676428.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285276 + ... + 285372.

It is an arithmetic number, because the mean of its divisors is an integer number (768320).

Almost surely, 2^27676428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27676428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36879360).

27676428 is an abundant number, since it is smaller than the sum of its proper divisors (46082292).

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

27676428 is a wasteful number, since it uses less digits than its factorization.

27676428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 205 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 27676428 is about 5260.8390965701. The cubic root of 27676428 is about 302.4846537305.

The spelling of 27676428 in words is "twenty-seven million, six hundred seventy-six thousand, four hundred twenty-eight".