27980760 has 32 divisors (see below), whose sum is σ = 83942640. Its totient is φ = 7461504.

The previous prime is 27980731. The next prime is 27980779. The reversal of 27980760 is 6708972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116467 + ... + 116706.

Almost surely, 2^27980760 is an apocalyptic number.

27980760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27980760 is an abundant number, since it is smaller than the sum of its proper divisors (55961880).

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

27980760 is a wasteful number, since it uses less digits than its factorization.

27980760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233187 (or 233183 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 27980760 is about 5289.6843005987. The cubic root of 27980760 is about 303.5893289033.

The spelling of 27980760 in words is "twenty-seven million, nine hundred eighty thousand, seven hundred sixty".