27904828 has 12 divisors (see below), whose sum is σ = 55809712. Its totient is φ = 11959200.

The previous prime is 27904783. The next prime is 27904859. The reversal of 27904828 is 82840972.

27904828 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498273 + ... + 498328.

Almost surely, 2^27904828 is an apocalyptic number.

27904828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27904828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27904828 is a wasteful number, since it uses less digits than its factorization.

27904828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996612 (or 996610 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 27904828 is about 5282.5020586839. The cubic root of 27904828 is about 303.3144611157.

The spelling of 27904828 in words is "twenty-seven million, nine hundred four thousand, eight hundred twenty-eight".