27994900 has 18 divisors (see below), whose sum is σ = 60749150. Its totient is φ = 11197920.

The previous prime is 27994873. The next prime is 27994931. The reversal of 27994900 is 949972.

It can be written as a sum of positive squares in 3 ways, for example, as 767376 + 27227524 = 876^2 + 5218^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139875 + ... + 140074.

Almost surely, 2^27994900 is an apocalyptic number.

27994900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27994900 is an abundant number, since it is smaller than the sum of its proper divisors (32754250).

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

27994900 is a wasteful number, since it uses less digits than its factorization.

27994900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279963 (or 279956 counting only the distinct ones).

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

The square root of 27994900 is about 5291.0206954802. The cubic root of 27994900 is about 303.6404596351.

The spelling of 27994900 in words is "twenty-seven million, nine hundred ninety-four thousand, nine hundred".