23207247 has 12 divisors (see below), whose sum is σ = 38310480. Its totient is φ = 13261248.

The previous prime is 23207231. The next prime is 23207263. The reversal of 23207247 is 74270232.

It is an interprime number because it is at equal distance from previous prime (23207231) and next prime (23207263).

It is not a de Polignac number, because 23207247 - 2⁴ = 23207231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23207247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23207297) 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, 184122 + ... + 184247.

It is an arithmetic number, because the mean of its divisors is an integer number (3192540).

Almost surely, 2^23207247 is an apocalyptic number.

23207247 is a deficient number, since it is larger than the sum of its proper divisors (15103233).

23207247 is a wasteful number, since it uses less digits than its factorization.

23207247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368382 (or 368379 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 23207247 is about 4817.3900610185. The cubic root of 23207247 is about 285.2383232756.

Adding to 23207247 its reverse (74270232), we get a palindrome (97477479).

The spelling of 23207247 in words is "twenty-three million, two hundred seven thousand, two hundred forty-seven".