11967980 has 12 divisors (see below), whose sum is σ = 25132800. Its totient is φ = 4787184.

The previous prime is 11967979. The next prime is 11967997. The reversal of 11967980 is 8976911.

It is a happy 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, 299180 + ... + 299219.

It is an arithmetic number, because the mean of its divisors is an integer number (2094400).

Almost surely, 2^11967980 is an apocalyptic number.

11967980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11967980 is an abundant number, since it is smaller than the sum of its proper divisors (13164820).

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

11967980 is a wasteful number, since it uses less digits than its factorization.

11967980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598408 (or 598406 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 11967980 is about 3459.4768390611. The cubic root of 11967980 is about 228.7390351777.

The spelling of 11967980 in words is "eleven million, nine hundred sixty-seven thousand, nine hundred eighty".