11690643 has 16 divisors (see below), whose sum is σ = 16485120. Its totient is φ = 7348896.

The previous prime is 11690593. The next prime is 11690677. The reversal of 11690643 is 34609611.

It is not a de Polignac number, because 11690643 - 2⁶ = 11690579 is a prime.

It is a super-2 number, since 2×11690643² = 273342267506898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11690643.

It is not an unprimeable number, because it can be changed into a prime (11690143) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17746 + ... + 18392.

It is an arithmetic number, because the mean of its divisors is an integer number (1030320).

Almost surely, 2^11690643 is an apocalyptic number.

11690643 is a deficient number, since it is larger than the sum of its proper divisors (4794477).

11690643 is a wasteful number, since it uses less digits than its factorization.

11690643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 11690643 is about 3419.1582297402. The cubic root of 11690643 is about 226.9583329631.

The spelling of 11690643 in words is "eleven million, six hundred ninety thousand, six hundred forty-three".