11720850 has 24 divisors (see below), whose sum is σ = 29068080. Its totient is φ = 3125520.

The previous prime is 11720809. The next prime is 11720851. The reversal of 11720850 is 5802711.

It is a self number, because there is not a number n which added to its sum of digits gives 11720850.

It is not an unprimeable number, because it can be changed into a prime (11720851) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 38920 + ... + 39219.

It is an arithmetic number, because the mean of its divisors is an integer number (1211170).

Almost surely, 2^11720850 is an apocalyptic number.

11720850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11720850 is an abundant number, since it is smaller than the sum of its proper divisors (17347230).

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

11720850 is a wasteful number, since it uses less digits than its factorization.

11720850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78154 (or 78149 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 11720850 is about 3423.5726952995. The cubic root of 11720850 is about 227.1536411274.

The spelling of 11720850 in words is "eleven million, seven hundred twenty thousand, eight hundred fifty".