27990716 has 12 divisors (see below), whose sum is σ = 52751832. Its totient is φ = 12918768.

The previous prime is 27990707. The next prime is 27990749. The reversal of 27990716 is 61709972.

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, 269090 + ... + 269193.

It is an arithmetic number, because the mean of its divisors is an integer number (4395986).

Almost surely, 2^27990716 is an apocalyptic number.

27990716 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27990716 is a deficient number, since it is larger than the sum of its proper divisors (24761116).

27990716 is a wasteful number, since it uses less digits than its factorization.

27990716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538300 (or 538298 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 27990716 is about 5290.6252938571. The cubic root of 27990716 is about 303.6253319394.

The spelling of 27990716 in words is "twenty-seven million, nine hundred ninety thousand, seven hundred sixteen".