23143329 has 24 divisors (see below), whose sum is σ = 37649664. Its totient is φ = 13572000.

The previous prime is 23143321. The next prime is 23143333. The reversal of 23143329 is 92334132.

It is a happy number.

It is not a de Polignac number, because 23143329 - 2³ = 23143321 is a prime.

It is a super-2 number, since 2×23143329² = 1071227354404482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23143321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 702 + ... + 6839.

It is an arithmetic number, because the mean of its divisors is an integer number (1568736).

Almost surely, 2^23143329 is an apocalyptic number.

It is an amenable number.

23143329 is a deficient number, since it is larger than the sum of its proper divisors (14506335).

23143329 is a wasteful number, since it uses less digits than its factorization.

23143329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7589 (or 7586 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 23143329 is about 4810.7513966116. The cubic root of 23143329 is about 284.9762122343.

The spelling of 23143329 in words is "twenty-three million, one hundred forty-three thousand, three hundred twenty-nine".