11883985 has 12 divisors (see below), whose sum is σ = 14911092. Its totient is φ = 9091808.

The previous prime is 11883983. The next prime is 11884001. The reversal of 11883985 is 58938811.

It can be written as a sum of positive squares in 2 ways, for example, as 9217296 + 2666689 = 3036^2 + 1633^2 .

It is not a de Polignac number, because 11883985 - 2¹ = 11883983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11883983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399 + ... + 4891.

It is an arithmetic number, because the mean of its divisors is an integer number (1242591).

Almost surely, 2^11883985 is an apocalyptic number.

It is an amenable number.

11883985 is a deficient number, since it is larger than the sum of its proper divisors (3027107).

11883985 is an equidigital number, since it uses as much as digits as its factorization.

11883985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544 (or 4521 counting only the distinct ones).

The product of its digits is 69120, while the sum is 43.

The square root of 11883985 is about 3447.3156223357. The cubic root of 11883985 is about 228.2026578669.

The spelling of 11883985 in words is "eleven million, eight hundred eighty-three thousand, nine hundred eighty-five".