11983805 has 8 divisors (see below), whose sum is σ = 15005952. Its totient is φ = 9170128.

The previous prime is 11983781. The next prime is 11983823. The reversal of 11983805 is 50838911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11983805 - 2¹⁰ = 11982781 is a prime.

It is a super-2 number, since 2×11983805² = 287223164556050, which contains 22 as substring.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 51989 + ... + 52218.

It is an arithmetic number, because the mean of its divisors is an integer number (1875744).

Almost surely, 2^11983805 is an apocalyptic number.

It is an amenable number.

11983805 is a deficient number, since it is larger than the sum of its proper divisors (3022147).

11983805 is a wasteful number, since it uses less digits than its factorization.

11983805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104235.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 11983805 is about 3461.7632790241. The cubic root of 11983805 is about 228.8398096594.

The spelling of 11983805 in words is "eleven million, nine hundred eighty-three thousand, eight hundred five".