23868507 has 32 divisors (see below), whose sum is σ = 35553280. Its totient is φ = 14152320.

The previous prime is 23868491. The next prime is 23868511. The reversal of 23868507 is 70586832.

23868507 = 1349² + 1350² + ... + 1361².

It is not a de Polignac number, because 23868507 - 2⁴ = 23868491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23868517) 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 31 ways as a sum of consecutive naturals, for example, 187878 + ... + 188004.

It is an arithmetic number, because the mean of its divisors is an integer number (1111040).

Almost surely, 2^23868507 is an apocalyptic number.

23868507 is a deficient number, since it is larger than the sum of its proper divisors (11684773).

23868507 is a wasteful number, since it uses less digits than its factorization.

23868507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 23868507 is about 4885.5406046824. The cubic root of 23868507 is about 287.9221553691.

The spelling of 23868507 in words is "twenty-three million, eight hundred sixty-eight thousand, five hundred seven".