23394839 has 18 divisors (see below), whose sum is σ = 26966880. Its totient is φ = 20282496.

The previous prime is 23394829. The next prime is 23394853. The reversal of 23394839 is 93849332.

It is a de Polignac number, because none of the positive numbers 2^k-23394839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23394796 and 23394805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23394809) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 48602 + ... + 49080.

It is an arithmetic number, because the mean of its divisors is an integer number (1498160).

Almost surely, 2^23394839 is an apocalyptic number.

23394839 is a deficient number, since it is larger than the sum of its proper divisors (3572041).

23394839 is a wasteful number, since it uses less digits than its factorization.

23394839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 509 counting only the distinct ones).

The product of its digits is 139968, while the sum is 41.

The square root of 23394839 is about 4836.8211668409. The cubic root of 23394839 is about 286.0048208554.

The spelling of 23394839 in words is "twenty-three million, three hundred ninety-four thousand, eight hundred thirty-nine".