23830529 has 4 divisors (see below), whose sum is σ = 23892180. Its totient is φ = 23768880.

The previous prime is 23830523. The next prime is 23830571. The reversal of 23830529 is 92503832.

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 5107600 + 18722929 = 2260^2 + 4327^2 .

It is a cyclic number.

It is not a de Polignac number, because 23830529 - 2⁸ = 23830273 is a prime.

It is a super-2 number, since 2×23830529² = 1135788224839682, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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 = 23830495 and 23830504.

It is not an unprimeable number, because it can be changed into a prime (23830523) 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, 30242 + ... + 31019.

It is an arithmetic number, because the mean of its divisors is an integer number (5973045).

It is a Proth number, since it is equal to 2909 ⋅ 2¹³ + 1 and 2909 < 2¹³.

Almost surely, 2^23830529 is an apocalyptic number.

It is an amenable number.

23830529 is a deficient number, since it is larger than the sum of its proper divisors (61651).

23830529 is an equidigital number, since it uses as much as digits as its factorization.

23830529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61650.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 23830529 is about 4881.6522817587. The cubic root of 23830529 is about 287.7693666997.

The spelling of 23830529 in words is "twenty-three million, eight hundred thirty thousand, five hundred twenty-nine".