890198 has 8 divisors (see below), whose sum is σ = 1354320. Its totient is φ = 438760.

The previous prime is 890177. The next prime is 890221. The reversal of 890198 is 891098.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

890198 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2993 + ... + 3276.

It is an arithmetic number, because the mean of its divisors is an integer number (169290).

2⁸⁹⁰¹⁹⁸ is an apocalyptic number.

890198 is a deficient number, since it is larger than the sum of its proper divisors (464122).

890198 is a wasteful number, since it uses less digits than its factorization.

890198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6342.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 890198 is about 943.5030471599. The cubic root of 890198 is about 96.1971498241.

Subtracting 890198 from its reverse (891098), we obtain a square (900 = 30²).

The spelling of 890198 in words is "eight hundred ninety thousand, one hundred ninety-eight".