11689930 has 24 divisors (see below), whose sum is σ = 24478308. Its totient is φ = 4007808.

The previous prime is 11689919. The next prime is 11689939. The reversal of 11689930 is 3998611.

It can be written as a sum of positive squares in 2 ways, for example, as 10323369 + 1366561 = 3213^2 + 1169^2 .

It is a super-3 number, since 3×11689930³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11689930.

It is not an unprimeable number, because it can be changed into a prime (11689939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11439 + ... + 12418.

Almost surely, 2^11689930 is an apocalyptic number.

11689930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11689930 is an abundant number, since it is smaller than the sum of its proper divisors (12788378).

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

11689930 is a wasteful number, since it uses less digits than its factorization.

11689930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23878 (or 23871 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 11689930 is about 3419.0539627213. The cubic root of 11689930 is about 226.9537188860.

The spelling of 11689930 in words is "eleven million, six hundred eighty-nine thousand, nine hundred thirty".