11663862 has 48 divisors (see below), whose sum is σ = 27483120. Its totient is φ = 3290112.

The previous prime is 11663857. The next prime is 11663863. The reversal of 11663862 is 26836611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11663863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28314 + ... + 28722.

It is an arithmetic number, because the mean of its divisors is an integer number (572565).

Almost surely, 2^11663862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11663862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13741560).

11663862 is an abundant number, since it is smaller than the sum of its proper divisors (15819258).

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

11663862 is a wasteful number, since it uses less digits than its factorization.

11663862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 518 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 11663862 is about 3415.2396694815. The cubic root of 11663862 is about 226.7848945892.

The spelling of 11663862 in words is "eleven million, six hundred sixty-three thousand, eight hundred sixty-two".