11983806 has 24 divisors (see below), whose sum is σ = 26333424. Its totient is φ = 3937920.

The previous prime is 11983781. The next prime is 11983823. The reversal of 11983806 is 60838911.

It is a super-2 number, since 2×11983806² = 287223212491272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3411 + ... + 5966.

It is an arithmetic number, because the mean of its divisors is an integer number (1097226).

Almost surely, 2^11983806 is an apocalyptic number.

11983806 is an abundant number, since it is smaller than the sum of its proper divisors (14349618).

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

11983806 is a wasteful number, since it uses less digits than its factorization.

11983806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9456 (or 9453 counting only the distinct ones).

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

The square root of 11983806 is about 3461.7634234592. The cubic root of 11983806 is about 228.8398160246.

The spelling of 11983806 in words is "eleven million, nine hundred eighty-three thousand, eight hundred six".