23398423 has 8 divisors (see below), whose sum is σ = 23682096. Its totient is φ = 23116800.

The previous prime is 23398421. The next prime is 23398451. The reversal of 23398423 is 32489332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23398423 - 2¹ = 23398421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23398421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36183 + ... + 36823.

It is an arithmetic number, because the mean of its divisors is an integer number (2960262).

Almost surely, 2^23398423 is an apocalyptic number.

23398423 is a deficient number, since it is larger than the sum of its proper divisors (283673).

23398423 is a wasteful number, since it uses less digits than its factorization.

23398423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025.

The product of its digits is 31104, while the sum is 34.

The square root of 23398423 is about 4837.1916439190. The cubic root of 23398423 is about 286.0194250584.

Subtracting 23398423 from its reverse (32489332), we obtain a palindrome (9090909).

The spelling of 23398423 in words is "twenty-three million, three hundred ninety-eight thousand, four hundred twenty-three".