11689590 has 32 divisors (see below), whose sum is σ = 30606336. Its totient is φ = 2833760.

The previous prime is 11689583. The next prime is 11689597. The reversal of 11689590 is 9598611.

It is an interprime number because it is at equal distance from previous prime (11689583) and next prime (11689597).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11689597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17382 + ... + 18041.

It is an arithmetic number, because the mean of its divisors is an integer number (956448).

Almost surely, 2^11689590 is an apocalyptic number.

11689590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11689590 is an abundant number, since it is smaller than the sum of its proper divisors (18916746).

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

11689590 is a wasteful number, since it uses less digits than its factorization.

11689590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35444.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 11689590 is about 3419.0042410035. The cubic root of 11689590 is about 226.9515185589.

The spelling of 11689590 in words is "eleven million, six hundred eighty-nine thousand, five hundred ninety".