23291712 has 70 divisors (see below), whose sum is σ = 69059298. Its totient is φ = 7762176.

The previous prime is 23291707. The next prime is 23291729. The reversal of 23291712 is 21719232.

It can be written as a sum of positive squares in only one way, i.e., 23270976 + 20736 = 4824^2 + 144^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2938 + ... + 7430.

Almost surely, 2^23291712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23291712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34529649).

23291712 is an abundant number, since it is smaller than the sum of its proper divisors (45767586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23291712 is an equidigital number, since it uses as much as digits as its factorization.

23291712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517 (or 4498 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 23291712 is about 4826.1487751622. The cubic root of 23291712 is about 285.5839550339.

The spelling of 23291712 in words is "twenty-three million, two hundred ninety-one thousand, seven hundred twelve".