11872985 has 8 divisors (see below), whose sum is σ = 14595336. Its totient is φ = 9266560.

The previous prime is 11872961. The next prime is 11873011. The reversal of 11872985 is 58927811.

It can be written as a sum of positive squares in 4 ways, for example, as 169744 + 11703241 = 412^2 + 3421^2 .

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

It is not a de Polignac number, because 11872985 - 2²⁰ = 10824409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 28754 + ... + 29163.

It is an arithmetic number, because the mean of its divisors is an integer number (1824417).

Almost surely, 2^11872985 is an apocalyptic number.

It is an amenable number.

11872985 is a deficient number, since it is larger than the sum of its proper divisors (2722351).

11872985 is an equidigital number, since it uses as much as digits as its factorization.

11872985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57963.

The product of its digits is 40320, while the sum is 41.

The square root of 11872985 is about 3445.7198086902. The cubic root of 11872985 is about 228.1322268305.

The spelling of 11872985 in words is "eleven million, eight hundred seventy-two thousand, nine hundred eighty-five".