11696643 has 40 divisors (see below), whose sum is σ = 20424800. Its totient is φ = 6667920.

The previous prime is 11696639. The next prime is 11696669. The reversal of 11696643 is 34669611.

11696643 is a `hidden beast` number, since 1 + 1 + 6 + 9 + 6 + 643 = 666.

It is not a de Polignac number, because 11696643 - 2² = 11696639 is a prime.

It is a super-2 number, since 2×11696643² = 273622914938898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11696598 and 11696607.

It is not an unprimeable number, because it can be changed into a prime (11696683) 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 39 ways as a sum of consecutive naturals, for example, 27573 + ... + 27993.

It is an arithmetic number, because the mean of its divisors is an integer number (510620).

Almost surely, 2^11696643 is an apocalyptic number.

11696643 is a deficient number, since it is larger than the sum of its proper divisors (8728157).

11696643 is an frugal number, since it uses more digits than its factorization.

11696643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 431 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 11696643 is about 3420.0355261313. The cubic root of 11696643 is about 226.9971536706.

The spelling of 11696643 in words is "eleven million, six hundred ninety-six thousand, six hundred forty-three".