23197216 has 48 divisors (see below), whose sum is σ = 54008640. Its totient is φ = 9596160.

The previous prime is 23197211. The next prime is 23197217. The reversal of 23197216 is 61279132.

It is a super-2 number, since 2×23197216² = 1076221660301312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23197211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4711 + ... + 8281.

It is an arithmetic number, because the mean of its divisors is an integer number (1125180).

Almost surely, 2^23197216 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 23197216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27004320).

23197216 is an abundant number, since it is smaller than the sum of its proper divisors (30811424).

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

23197216 is a wasteful number, since it uses less digits than its factorization.

23197216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3617 (or 3609 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 23197216 is about 4816.3488245766. The cubic root of 23197216 is about 285.1972206269.

The spelling of 23197216 in words is "twenty-three million, one hundred ninety-seven thousand, two hundred sixteen".