23531326 has 16 divisors (see below), whose sum is σ = 43442784. Its totient is φ = 9309024.

The previous prime is 23531309. The next prime is 23531341. The reversal of 23531326 is 62313532.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23531326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64465 + ... + 64828.

It is an arithmetic number, because the mean of its divisors is an integer number (2715174).

Almost surely, 2^23531326 is an apocalyptic number.

23531326 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23531326 is a deficient number, since it is larger than the sum of its proper divisors (19911458).

23531326 is a wasteful number, since it uses less digits than its factorization.

23531326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129315.

The product of its digits is 3240, while the sum is 25.

The square root of 23531326 is about 4850.9098115714. The cubic root of 23531326 is about 286.5599329230.

Adding to 23531326 its reverse (62313532), we get a palindrome (85844858).

The spelling of 23531326 in words is "twenty-three million, five hundred thirty-one thousand, three hundred twenty-six".