11491686 has 32 divisors (see below), whose sum is σ = 25737600. Its totient is φ = 3800520.

The previous prime is 11491661. The next prime is 11491709. The reversal of 11491686 is 68619411.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11491686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6741 + ... + 8271.

It is an arithmetic number, because the mean of its divisors is an integer number (804300).

Almost surely, 2^11491686 is an apocalyptic number.

11491686 is an abundant number, since it is smaller than the sum of its proper divisors (14245914).

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

11491686 is a wasteful number, since it uses less digits than its factorization.

11491686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681 (or 1675 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 11491686 is about 3389.9389375032. The cubic root of 11491686 is about 225.6634639243.

The spelling of 11491686 in words is "eleven million, four hundred ninety-one thousand, six hundred eighty-six".