11573985 has 16 divisors (see below), whose sum is σ = 18913536. Its totient is φ = 6041088.

The previous prime is 11573977. The next prime is 11573993. The reversal of 11573985 is 58937511.

It is an interprime number because it is at equal distance from previous prime (11573977) and next prime (11573993).

It is not a de Polignac number, because 11573985 - 2³ = 11573977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7504 + ... + 8913.

It is an arithmetic number, because the mean of its divisors is an integer number (1182096).

Almost surely, 2^11573985 is an apocalyptic number.

11573985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11573985 is a deficient number, since it is larger than the sum of its proper divisors (7339551).

11573985 is a wasteful number, since it uses less digits than its factorization.

11573985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16472.

The product of its digits is 37800, while the sum is 39.

The square root of 11573985 is about 3402.0559960118. The cubic root of 11573985 is about 226.2008877659.

The spelling of 11573985 in words is "eleven million, five hundred seventy-three thousand, nine hundred eighty-five".