23423986 has 16 divisors (see below), whose sum is σ = 36082584. Its totient is φ = 11400064.

The previous prime is 23423971. The next prime is 23423987. The reversal of 23423986 is 68932432.

It can be written as a sum of positive squares in 4 ways, for example, as 22743361 + 680625 = 4769^2 + 825^2 .

It is not an unprimeable number, because it can be changed into a prime (23423987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13716 + ... + 15328.

Almost surely, 2^23423986 is an apocalyptic number.

23423986 is a deficient number, since it is larger than the sum of its proper divisors (12658598).

23423986 is a wasteful number, since it uses less digits than its factorization.

23423986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805.

The product of its digits is 62208, while the sum is 37.

The square root of 23423986 is about 4839.8332615907. The cubic root of 23423986 is about 286.1235467984.

It can be divided in two parts, 2342 and 3986, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 23423986 in words is "twenty-three million, four hundred twenty-three thousand, nine hundred eighty-six".