11770820 has 24 divisors (see below), whose sum is σ = 25295424. Its totient is φ = 4598496.

The previous prime is 11770807. The next prime is 11770841. The reversal of 11770820 is 2807711.

It is a self number, because there is not a number n which added to its sum of digits gives 11770820.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5984 + ... + 7703.

It is an arithmetic number, because the mean of its divisors is an integer number (1053976).

Almost surely, 2^11770820 is an apocalyptic number.

11770820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11770820 is an abundant number, since it is smaller than the sum of its proper divisors (13524604).

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

11770820 is a wasteful number, since it uses less digits than its factorization.

11770820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13739 (or 13737 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 11770820 is about 3430.8628652279. The cubic root of 11770820 is about 227.4759947299.

The spelling of 11770820 in words is "eleven million, seven hundred seventy thousand, eight hundred twenty".