11621860 has 24 divisors (see below), whose sum is σ = 25002936. Its totient is φ = 4535040.

The previous prime is 11621843. The next prime is 11621873. The reversal of 11621860 is 6812611.

11621860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 692224 + 10929636 = 832^2 + 3306^2 .

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, 6267 + ... + 7906.

It is an arithmetic number, because the mean of its divisors is an integer number (1041789).

Almost surely, 2^11621860 is an apocalyptic number.

11621860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11621860 is an abundant number, since it is smaller than the sum of its proper divisors (13381076).

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

11621860 is a wasteful number, since it uses less digits than its factorization.

11621860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14223 (or 14221 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 11621860 is about 3409.0849212069. The cubic root of 11621860 is about 226.5123469010.

Subtracting from 11621860 its reverse (6812611), we obtain a square (4809249 = 2193²).

The spelling of 11621860 in words is "eleven million, six hundred twenty-one thousand, eight hundred sixty".