11872585 has 4 divisors (see below), whose sum is σ = 14247108. Its totient is φ = 9498064.

The previous prime is 11872547. The next prime is 11872603. The reversal of 11872585 is 58527811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4631104 + 7241481 = 2152^2 + 2691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11872585 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 1187254 + ... + 1187263.

It is an arithmetic number, because the mean of its divisors is an integer number (3561777).

Almost surely, 2^11872585 is an apocalyptic number.

It is an amenable number.

11872585 is a deficient number, since it is larger than the sum of its proper divisors (2374523).

11872585 is an equidigital number, since it uses as much as digits as its factorization.

11872585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374522.

The product of its digits is 22400, while the sum is 37.

The square root of 11872585 is about 3445.6617651766. The cubic root of 11872585 is about 228.1296648824.

The spelling of 11872585 in words is "eleven million, eight hundred seventy-two thousand, five hundred eighty-five".