11669831 has 4 divisors (see below), whose sum is σ = 11676672. Its totient is φ = 11662992.

The previous prime is 11669821. The next prime is 11669839. The reversal of 11669831 is 13896611.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11669831 - 2⁶ = 11669767 is a prime.

It is a super-2 number, since 2×11669831² = 272369911137122, 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 = 11669791 and 11669800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11669839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466 + ... + 5048.

It is an arithmetic number, because the mean of its divisors is an integer number (2919168).

Almost surely, 2^11669831 is an apocalyptic number.

11669831 is a deficient number, since it is larger than the sum of its proper divisors (6841).

11669831 is an equidigital number, since it uses as much as digits as its factorization.

11669831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6840.

The product of its digits is 7776, while the sum is 35.

The square root of 11669831 is about 3416.1134348847. The cubic root of 11669831 is about 226.8235738358.

The spelling of 11669831 in words is "eleven million, six hundred sixty-nine thousand, eight hundred thirty-one".