23216 has 10 divisors (see below), whose sum is σ = 45012. Its totient is φ = 11600.

The previous prime is 23209. The next prime is 23227. The reversal of 23216 is 61232.

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 23216.

It is an unprimeable number.

23216 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 710 + ... + 741.

2²³²¹⁶ is an apocalyptic number.

It is an amenable number.

23216 is a deficient number, since it is larger than the sum of its proper divisors (21796).

23216 is a wasteful number, since it uses less digits than its factorization.

23216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459 (or 1453 counting only the distinct ones).

The product of its digits is 72, while the sum is 14.

The square root of 23216 is about 152.3679756379. The cubic root of 23216 is about 28.5274179564.

Adding to 23216 its reverse (61232), we get a palindrome (84448).

The spelling of 23216 in words is "twenty-three thousand, two hundred sixteen".