8198869 has 4 divisors (see below), whose sum is σ = 9370144. Its totient is φ = 7027596.

The previous prime is 8198863. The next prime is 8198891. The reversal of 8198869 is 9688918.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9688918 = 2 ⋅4844459.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8198869 is a prime.

It is a super-2 number, since 2×8198869² = 134442905758322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8198863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585627 + ... + 585640.

It is an arithmetic number, because the mean of its divisors is an integer number (2342536).

Almost surely, 2^8198869 is an apocalyptic number.

It is an amenable number.

8198869 is a deficient number, since it is larger than the sum of its proper divisors (1171275).

8198869 is a wasteful number, since it uses less digits than its factorization.

8198869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171274.

The product of its digits is 248832, while the sum is 49.

The square root of 8198869 is about 2863.3667246792. The cubic root of 8198869 is about 201.6436959774.

Adding to 8198869 its sum of digits (49), we get a palindrome (8198918).

The spelling of 8198869 in words is "eight million, one hundred ninety-eight thousand, eight hundred sixty-nine".