11887669 has 2 divisors, whose sum is σ = 11887670. Its totient is φ = 11887668.

The previous prime is 11887643. The next prime is 11887699. The reversal of 11887669 is 96678811.

11887669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7091569 + 4796100 = 2663^2 + 2190^2 .

It is a cyclic number.

It is not a de Polignac number, because 11887669 - 2⁵ = 11887637 is a prime.

It is a super-2 number, since 2×11887669² = 282633348507122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11887699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5943834 + 5943835.

It is an arithmetic number, because the mean of its divisors is an integer number (5943835).

Almost surely, 2^11887669 is an apocalyptic number.

It is an amenable number.

11887669 is a deficient number, since it is larger than the sum of its proper divisors (1).

11887669 is an equidigital number, since it uses as much as digits as its factorization.

11887669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 46.

The square root of 11887669 is about 3447.8499097264. The cubic root of 11887669 is about 228.2262361457.

The spelling of 11887669 in words is "eleven million, eight hundred eighty-seven thousand, six hundred sixty-nine".