11573039 has 4 divisors (see below), whose sum is σ = 12253824. Its totient is φ = 10892256.

The previous prime is 11573021. The next prime is 11573047. The reversal of 11573039 is 93037511.

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

It is a cyclic number.

It is not a de Polignac number, because 11573039 - 2²⁰ = 10524463 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 (11573099) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 340367 + ... + 340400.

It is an arithmetic number, because the mean of its divisors is an integer number (3063456).

Almost surely, 2^11573039 is an apocalyptic number.

11573039 is a deficient number, since it is larger than the sum of its proper divisors (680785).

11573039 is an equidigital number, since it uses as much as digits as its factorization.

11573039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680784.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 11573039 is about 3401.9169595979. The cubic root of 11573039 is about 226.1947247526.

The spelling of 11573039 in words is "eleven million, five hundred seventy-three thousand, thirty-nine".