23423247 has 12 divisors (see below), whose sum is σ = 34062600. Its totient is φ = 15509808.

The previous prime is 23423243. The next prime is 23423273. The reversal of 23423247 is 74232432.

It is not a de Polignac number, because 23423247 - 2² = 23423243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23423247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23423243) 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 11 ways as a sum of consecutive naturals, for example, 7393 + ... + 10074.

It is an arithmetic number, because the mean of its divisors is an integer number (2838550).

Almost surely, 2^23423247 is an apocalyptic number.

23423247 is a deficient number, since it is larger than the sum of its proper divisors (10639353).

23423247 is a wasteful number, since it uses less digits than its factorization.

23423247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17622 (or 17619 counting only the distinct ones).

The product of its digits is 8064, while the sum is 27.

The square root of 23423247 is about 4839.7569153833. The cubic root of 23423247 is about 286.1205378097.

Adding to 23423247 its reverse (74232432), we get a palindrome (97655679).

The spelling of 23423247 in words is "twenty-three million, four hundred twenty-three thousand, two hundred forty-seven".