23289529 has 4 divisors (see below), whose sum is σ = 23391460. Its totient is φ = 23187600.

The previous prime is 23289527. The next prime is 23289533. The reversal of 23289529 is 92598232.

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 8643600 + 14645929 = 2940^2 + 3827^2 .

It is a cyclic number.

It is not a de Polignac number, because 23289529 - 2¹ = 23289527 is a prime.

It is a super-2 number, since 2×23289529² = 1084804322083682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23289491 and 23289500.

It is not an unprimeable number, because it can be changed into a prime (23289521) 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, 50622 + ... + 51079.

It is an arithmetic number, because the mean of its divisors is an integer number (5847865).

Almost surely, 2^23289529 is an apocalyptic number.

It is an amenable number.

23289529 is a deficient number, since it is larger than the sum of its proper divisors (101931).

23289529 is a wasteful number, since it uses less digits than its factorization.

23289529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101930.

The product of its digits is 77760, while the sum is 40.

The square root of 23289529 is about 4825.9226060931. The cubic root of 23289529 is about 285.5750327006.

The spelling of 23289529 in words is "twenty-three million, two hundred eighty-nine thousand, five hundred twenty-nine".