11669814 has 24 divisors (see below), whose sum is σ = 27230112. Its totient is φ = 3590640.

The previous prime is 11669767. The next prime is 11669821. The reversal of 11669814 is 41896611.

Added to its reverse (41896611) it gives a triangular number (53566425 = T₁₀₃₅₀).

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24702 + ... + 25169.

It is an arithmetic number, because the mean of its divisors is an integer number (1134588).

Almost surely, 2^11669814 is an apocalyptic number.

11669814 is an abundant number, since it is smaller than the sum of its proper divisors (15560298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11669814 is a wasteful number, since it uses less digits than its factorization.

11669814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49892 (or 49889 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 11669814 is about 3416.1109466761. The cubic root of 11669814 is about 226.8234636942.

Adding to 11669814 its reverse (41896611), we get a triangular number (53566425 = T₁₀₃₅₀).

The spelling of 11669814 in words is "eleven million, six hundred sixty-nine thousand, eight hundred fourteen".