27897700 has 36 divisors (see below), whose sum is σ = 63728560. Its totient is φ = 10571040.

The previous prime is 27897691. The next prime is 27897707. The reversal of 27897700 is 779872.

It is not an unprimeable number, because it can be changed into a prime (27897707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5442 + ... + 9241.

Almost surely, 2^27897700 is an apocalyptic number.

27897700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27897700 is an abundant number, since it is smaller than the sum of its proper divisors (35830860).

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

27897700 is a wasteful number, since it uses less digits than its factorization.

27897700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14716 (or 14709 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 27897700 is about 5281.8273353074. The cubic root of 27897700 is about 303.2886327346.

The spelling of 27897700 in words is "twenty-seven million, eight hundred ninety-seven thousand, seven hundred".