23072687 has 4 divisors (see below), whose sum is σ = 25170216. Its totient is φ = 20975160.

The previous prime is 23072681. The next prime is 23072713. The reversal of 23072687 is 78627032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23072687 - 2⁴ = 23072671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23072681) 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 3 ways as a sum of consecutive naturals, for example, 1048748 + ... + 1048769.

It is an arithmetic number, because the mean of its divisors is an integer number (6292554).

Almost surely, 2^23072687 is an apocalyptic number.

23072687 is a deficient number, since it is larger than the sum of its proper divisors (2097529).

23072687 is a wasteful number, since it uses less digits than its factorization.

23072687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097528.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 23072687 is about 4803.4036890522. The cubic root of 23072687 is about 284.6859657865.

It can be divided in two parts, 2307 and 2687, that added together give a palindrome (4994).

The spelling of 23072687 in words is "twenty-three million, seventy-two thousand, six hundred eighty-seven".