981783196 has 6 divisors (see below), whose sum is σ = 1718120600. Its totient is φ = 490891596.

The previous prime is 981783191. The next prime is 981783199. The reversal of 981783196 is 691387189.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981783191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122722896 + ... + 122722903.

Almost surely, 2^981783196 is an apocalyptic number.

It is an amenable number.

981783196 is a deficient number, since it is larger than the sum of its proper divisors (736337404).

981783196 is a wasteful number, since it uses less digits than its factorization.

981783196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245445803 (or 245445801 counting only the distinct ones).

The product of its digits is 653184, while the sum is 52.

The square root of 981783196 is about 31333.4197942070. The cubic root of 981783196 is about 993.8904818025.

The spelling of 981783196 in words is "nine hundred eighty-one million, seven hundred eighty-three thousand, one hundred ninety-six".