981817196 has 12 divisors (see below), whose sum is σ = 1743825048. Its totient is φ = 483581472.

The previous prime is 981817189. The next prime is 981817217. The reversal of 981817196 is 691718189.

It is a super-2 number, since 2×981817196² = 1927930012722604832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1831481 + ... + 1832016.

It is an arithmetic number, because the mean of its divisors is an integer number (145318754).

Almost surely, 2^981817196 is an apocalyptic number.

It is an amenable number.

981817196 is a deficient number, since it is larger than the sum of its proper divisors (762007852).

981817196 is a wasteful number, since it uses less digits than its factorization.

981817196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663568 (or 3663566 counting only the distinct ones).

The product of its digits is 217728, while the sum is 50.

The square root of 981817196 is about 31333.9623412042. The cubic root of 981817196 is about 993.9019547653.

The spelling of 981817196 in words is "nine hundred eighty-one million, eight hundred seventeen thousand, one hundred ninety-six".