23186996 has 36 divisors (see below), whose sum is σ = 47482596. Its totient is φ = 9878400.

The previous prime is 23186983. The next prime is 23187029. The reversal of 23186996 is 69968132.

It can be written as a sum of positive squares in 2 ways, for example, as 5664400 + 17522596 = 2380^2 + 4186^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54866 + ... + 55286.

It is an arithmetic number, because the mean of its divisors is an integer number (1318961).

Almost surely, 2^23186996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23186996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23741298).

23186996 is an abundant number, since it is smaller than the sum of its proper divisors (24295600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23186996 is a wasteful number, since it uses less digits than its factorization.

23186996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 711 counting only the distinct ones).

The product of its digits is 139968, while the sum is 44.

The square root of 23186996 is about 4815.2877380277. The cubic root of 23186996 is about 285.1553313510.

The spelling of 23186996 in words is "twenty-three million, one hundred eighty-six thousand, nine hundred ninety-six".