27949900 has 36 divisors (see below), whose sum is σ = 66167640. Its totient is φ = 10163200.

The previous prime is 27949897. The next prime is 27949927. The reversal of 27949900 is 994972.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11605 + ... + 13804.

It is an arithmetic number, because the mean of its divisors is an integer number (1837990).

Almost surely, 2^27949900 is an apocalyptic number.

27949900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27949900 is an abundant number, since it is smaller than the sum of its proper divisors (38217740).

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

27949900 is a wasteful number, since it uses less digits than its factorization.

27949900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25434 (or 25427 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 27949900 is about 5286.7664975862. The cubic root of 27949900 is about 303.4776782181.

The spelling of 27949900 in words is "twenty-seven million, nine hundred forty-nine thousand, nine hundred".