11575828 has 18 divisors (see below), whose sum is σ = 22267658. Its totient is φ = 5261520.

The previous prime is 11575813. The next prime is 11575841. The reversal of 11575828 is 82857511.

It can be written as a sum of positive squares in only one way, i.e., 10316944 + 1258884 = 3212^2 + 1122^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11475 + ... + 12442.

Almost surely, 2^11575828 is an apocalyptic number.

It is an amenable number.

11575828 is a deficient number, since it is larger than the sum of its proper divisors (10691830).

11575828 is a wasteful number, since it uses less digits than its factorization.

11575828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23943 (or 23930 counting only the distinct ones).

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

The square root of 11575828 is about 3402.3268508478. The cubic root of 11575828 is about 226.2128936023.

It can be divided in two parts, 11575 and 828, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 11575828 in words is "eleven million, five hundred seventy-five thousand, eight hundred twenty-eight".