23197984 has 48 divisors (see below), whose sum is σ = 48831552. Its totient is φ = 10821888.

The previous prime is 23197957. The next prime is 23197987. The reversal of 23197984 is 48979132.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 23197984.

It is not an unprimeable number, because it can be changed into a prime (23197987) 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, 31282 + ... + 32014.

It is an arithmetic number, because the mean of its divisors is an integer number (1017324).

Almost surely, 2^23197984 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 23197984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24415776).

23197984 is an abundant number, since it is smaller than the sum of its proper divisors (25633568).

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

23197984 is a wasteful number, since it uses less digits than its factorization.

23197984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 801 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 23197984 is about 4816.4285523612. The cubic root of 23197984 is about 285.2003679737.

The spelling of 23197984 in words is "twenty-three million, one hundred ninety-seven thousand, nine hundred eighty-four".