23499443 has 4 divisors (see below), whose sum is σ = 25635768. Its totient is φ = 21363120.

The previous prime is 23499439. The next prime is 23499451. The reversal of 23499443 is 34499432.

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 23499443 - 2² = 23499439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23499397 and 23499406.

It is not an unprimeable number, because it can be changed into a prime (23499433) 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, 1068146 + ... + 1068167.

It is an arithmetic number, because the mean of its divisors is an integer number (6408942).

Almost surely, 2^23499443 is an apocalyptic number.

23499443 is a deficient number, since it is larger than the sum of its proper divisors (2136325).

23499443 is a wasteful number, since it uses less digits than its factorization.

23499443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136324.

The product of its digits is 93312, while the sum is 38.

The square root of 23499443 is about 4847.6224069125. The cubic root of 23499443 is about 286.4304527596.

The spelling of 23499443 in words is "twenty-three million, four hundred ninety-nine thousand, four hundred forty-three".