11609690 has 16 divisors (see below), whose sum is σ = 20939040. Its totient is φ = 4634640.

The previous prime is 11609681. The next prime is 11609711. The reversal of 11609690 is 9690611.

It is a happy number.

It is a super-2 number, since 2×11609690² = 269569803792200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6605 + ... + 8175.

It is an arithmetic number, because the mean of its divisors is an integer number (1308690).

Almost surely, 2^11609690 is an apocalyptic number.

11609690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11609690 is a deficient number, since it is larger than the sum of its proper divisors (9329350).

11609690 is a wasteful number, since it uses less digits than its factorization.

11609690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 11609690 is about 3407.2995172130. The cubic root of 11609690 is about 226.4332540523.

The spelling of 11609690 in words is "eleven million, six hundred nine thousand, six hundred ninety".