816198 has 8 divisors (see below), whose sum is σ = 1632408. Its totient is φ = 272064.

The previous prime is 816191. The next prime is 816203. The reversal of 816198 is 891618.

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

816198 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816191) 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, 68011 + ... + 68022.

It is an arithmetic number, because the mean of its divisors is an integer number (204051).

2⁸¹⁶¹⁹⁸ is an apocalyptic number.

816198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

816198 is a wasteful number, since it uses less digits than its factorization.

816198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136038.

The product of its digits is 3456, while the sum is 33.

The square root of 816198 is about 903.4367714456. The cubic root of 816198 is about 93.4541321347.

The spelling of 816198 in words is "eight hundred sixteen thousand, one hundred ninety-eight".