11890688 has 26 divisors (see below), whose sum is σ = 23786664. Its totient is φ = 5943296.

The previous prime is 11890679. The next prime is 11890717. The reversal of 11890688 is 88609811.

It is a super-2 number, since 2×11890688² = 282776922226688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2645 + ... + 5547.

Almost surely, 2^11890688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11890688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11893332).

11890688 is an abundant number, since it is smaller than the sum of its proper divisors (11895976).

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

11890688 is an frugal number, since it uses more digits than its factorization.

11890688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927 (or 2905 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 41.

The square root of 11890688 is about 3448.2876910142. The cubic root of 11890688 is about 228.2455546705.

The spelling of 11890688 in words is "eleven million, eight hundred ninety thousand, six hundred eighty-eight".