11683891 has 2 divisors, whose sum is σ = 11683892. Its totient is φ = 11683890.

The previous prime is 11683883. The next prime is 11683907. The reversal of 11683891 is 19838611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11683891 - 2³ = 11683883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11683891.

It is not a weakly prime, because it can be changed into another prime (11683291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5841945 + 5841946.

It is an arithmetic number, because the mean of its divisors is an integer number (5841946).

Almost surely, 2^11683891 is an apocalyptic number.

11683891 is a deficient number, since it is larger than the sum of its proper divisors (1).

11683891 is an equidigital number, since it uses as much as digits as its factorization.

11683891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 37.

The square root of 11683891 is about 3418.1707096048. The cubic root of 11683891 is about 226.9146308394.

The spelling of 11683891 in words is "eleven million, six hundred eighty-three thousand, eight hundred ninety-one".