11572329 has 4 divisors (see below), whose sum is σ = 15429776. Its totient is φ = 7714884.

The previous prime is 11572321. The next prime is 11572333. The reversal of 11572329 is 92327511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11572329 - 2³ = 11572321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11572296 and 11572305.

It is not an unprimeable number, because it can be changed into a prime (11572321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1928719 + ... + 1928724.

It is an arithmetic number, because the mean of its divisors is an integer number (3857444).

Almost surely, 2^11572329 is an apocalyptic number.

It is an amenable number.

11572329 is a deficient number, since it is larger than the sum of its proper divisors (3857447).

11572329 is an equidigital number, since it uses as much as digits as its factorization.

11572329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857446.

The product of its digits is 3780, while the sum is 30.

The square root of 11572329 is about 3401.8126050681. The cubic root of 11572329 is about 226.1900990146.

It can be divided in two parts, 1157 and 2329, that added together give a triangular number (3486 = T₈₃).

The spelling of 11572329 in words is "eleven million, five hundred seventy-two thousand, three hundred twenty-nine".