11916890 has 16 divisors (see below), whose sum is σ = 21503232. Its totient is φ = 4755024.

The previous prime is 11916869. The next prime is 11916893. The reversal of 11916890 is 9861911.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11916890.

It is not an unprimeable number, because it can be changed into a prime (11916893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3647 + ... + 6093.

It is an arithmetic number, because the mean of its divisors is an integer number (1343952).

Almost surely, 2^11916890 is an apocalyptic number.

11916890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11916890 is a deficient number, since it is larger than the sum of its proper divisors (9586342).

11916890 is a wasteful number, since it uses less digits than its factorization.

11916890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 11916890 is about 3452.0848772879. The cubic root of 11916890 is about 228.4130835968.

The spelling of 11916890 in words is "eleven million, nine hundred sixteen thousand, eight hundred ninety".