11799780 has 24 divisors (see below), whose sum is σ = 33039552. Its totient is φ = 3146592.

The previous prime is 11799769. The next prime is 11799791. The reversal of 11799780 is 8799711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11799769) and next prime (11799791).

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, 98272 + ... + 98391.

It is an arithmetic number, because the mean of its divisors is an integer number (1376648).

Almost surely, 2^11799780 is an apocalyptic number.

11799780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11799780 is an abundant number, since it is smaller than the sum of its proper divisors (21239772).

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

11799780 is a wasteful number, since it uses less digits than its factorization.

11799780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196675 (or 196673 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 42.

The square root of 11799780 is about 3435.0807850762. The cubic root of 11799780 is about 227.6623966276.

The spelling of 11799780 in words is "eleven million, seven hundred ninety-nine thousand, seven hundred eighty".