8198981 has 8 divisors (see below), whose sum is σ = 9921600. Its totient is φ = 6614208.

The previous prime is 8198963. The next prime is 8199001. The reversal of 8198981 is 1898918.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8198981 - 2⁶ = 8198917 is a prime.

It is a super-2 number, since 2×8198981² = 134446578876722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8198951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34331 + ... + 34568.

It is an arithmetic number, because the mean of its divisors is an integer number (1240200).

Almost surely, 2^8198981 is an apocalyptic number.

It is an amenable number.

8198981 is a deficient number, since it is larger than the sum of its proper divisors (1722619).

8198981 is a wasteful number, since it uses less digits than its factorization.

8198981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68923.

The product of its digits is 41472, while the sum is 44.

The square root of 8198981 is about 2863.3862820095. The cubic root of 8198981 is about 201.6446141525.

The spelling of 8198981 in words is "eight million, one hundred ninety-eight thousand, nine hundred eighty-one".