27896920 has 16 divisors (see below), whose sum is σ = 62768160. Its totient is φ = 11158752.

The previous prime is 27896917. The next prime is 27896963. The reversal of 27896920 is 2969872.

It is a happy number.

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, 348672 + ... + 348751.

It is an arithmetic number, because the mean of its divisors is an integer number (3923010).

Almost surely, 2^27896920 is an apocalyptic number.

27896920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27896920 is an abundant number, since it is smaller than the sum of its proper divisors (34871240).

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

27896920 is a wasteful number, since it uses less digits than its factorization.

27896920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697434 (or 697430 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 27896920 is about 5281.7534967092. The cubic root of 27896920 is about 303.2858061296.

The spelling of 27896920 in words is "twenty-seven million, eight hundred ninety-six thousand, nine hundred twenty".