11573287 has 12 divisors (see below), whose sum is σ = 12860568. Its totient is φ = 10406000.

The previous prime is 11573273. The next prime is 11573297. The reversal of 11573287 is 78237511.

It is not a de Polignac number, because 11573287 - 2¹¹ = 11571239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11573257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11748 + ... + 12694.

It is an arithmetic number, because the mean of its divisors is an integer number (1071714).

Almost surely, 2^11573287 is an apocalyptic number.

11573287 is a deficient number, since it is larger than the sum of its proper divisors (1287281).

11573287 is a wasteful number, since it uses less digits than its factorization.

11573287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1059 counting only the distinct ones).

The product of its digits is 11760, while the sum is 34.

The square root of 11573287 is about 3401.9534094399. The cubic root of 11573287 is about 226.1963404588.

It can be divided in two parts, 1157 and 3287, that added together give a palindrome (4444).

The spelling of 11573287 in words is "eleven million, five hundred seventy-three thousand, two hundred eighty-seven".