11847980 has 24 divisors (see below), whose sum is σ = 26345088. Its totient is φ = 4460288.

The previous prime is 11847977. The next prime is 11848021. The reversal of 11847980 is 8974811.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17084 + ... + 17763.

It is an arithmetic number, because the mean of its divisors is an integer number (1097712).

Almost surely, 2^11847980 is an apocalyptic number.

11847980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11847980 is an abundant number, since it is smaller than the sum of its proper divisors (14497108).

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

11847980 is a wasteful number, since it uses less digits than its factorization.

11847980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34873 (or 34871 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 11847980 is about 3442.0894816957. The cubic root of 11847980 is about 227.9719622853.

The spelling of 11847980 in words is "eleven million, eight hundred forty-seven thousand, nine hundred eighty".