196815984 has 80 divisors (see below), whose sum is σ = 543358080. Its totient is φ = 61205760.

The previous prime is 196815943. The next prime is 196815989. The reversal of 196815984 is 489518691.

196815984 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196815989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59494 + ... + 62714.

It is an arithmetic number, because the mean of its divisors is an integer number (6791976).

Almost surely, 2^196815984 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 196815984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271679040).

196815984 is an abundant number, since it is smaller than the sum of its proper divisors (346542096).

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

196815984 is a wasteful number, since it uses less digits than its factorization.

196815984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318 (or 3312 counting only the distinct ones).

The product of its digits is 622080, while the sum is 51.

The square root of 196815984 is about 14029.1120175156. The cubic root of 196815984 is about 581.6835586847.

The spelling of 196815984 in words is "one hundred ninety-six million, eight hundred fifteen thousand, nine hundred eighty-four".