11687420 has 24 divisors (see below), whose sum is σ = 24635184. Its totient is φ = 4657536.

The previous prime is 11687407. The next prime is 11687441. The reversal of 11687420 is 2478611.

It is a congruent number.

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, 5327 + ... + 7193.

It is an arithmetic number, because the mean of its divisors is an integer number (1026466).

Almost surely, 2^11687420 is an apocalyptic number.

11687420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11687420 is an abundant number, since it is smaller than the sum of its proper divisors (12947764).

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

11687420 is a wasteful number, since it uses less digits than its factorization.

11687420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 11687420 is about 3418.6868824155. The cubic root of 11687420 is about 226.9374742889.

The spelling of 11687420 in words is "eleven million, six hundred eighty-seven thousand, four hundred twenty".