23367681 has 12 divisors (see below), whose sum is σ = 33826260. Its totient is φ = 15544800.

The previous prime is 23367677. The next prime is 23367689. The reversal of 23367681 is 18676332.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6843456 + 16524225 = 2616^2 + 4065^2 .

It is not a de Polignac number, because 23367681 - 2² = 23367677 is a prime.

It is a super-2 number, since 2×23367681² = 1092097030635522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23367689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2031 + ... + 7131.

It is an arithmetic number, because the mean of its divisors is an integer number (2818855).

Almost surely, 2^23367681 is an apocalyptic number.

It is an amenable number.

23367681 is a deficient number, since it is larger than the sum of its proper divisors (10458579).

23367681 is a wasteful number, since it uses less digits than its factorization.

23367681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5616 (or 5613 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 23367681 is about 4834.0129292338. The cubic root of 23367681 is about 285.8941080262.

The spelling of 23367681 in words is "twenty-three million, three hundred sixty-seven thousand, six hundred eighty-one".