11942985 has 16 divisors (see below), whose sum is σ = 19209600. Its totient is φ = 6336000.

The previous prime is 11942977. The next prime is 11942989. The reversal of 11942985 is 58924911.

11942985 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11942985 - 2³ = 11942977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11942989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985 + ... + 4985.

It is an arithmetic number, because the mean of its divisors is an integer number (1200600).

Almost surely, 2^11942985 is an apocalyptic number.

11942985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11942985 is a deficient number, since it is larger than the sum of its proper divisors (7266615).

11942985 is a wasteful number, since it uses less digits than its factorization.

11942985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4208.

The product of its digits is 25920, while the sum is 39.

The square root of 11942985 is about 3455.8624104556. The cubic root of 11942985 is about 228.5796845046.

The spelling of 11942985 in words is "eleven million, nine hundred forty-two thousand, nine hundred eighty-five".