845998 has 8 divisors (see below), whose sum is σ = 1279080. Its totient is φ = 419640.

The previous prime is 845989. The next prime is 846037. The reversal of 845998 is 899548.

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.

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, 1353 + ... + 1876.

It is an arithmetic number, because the mean of its divisors is an integer number (159885).

2⁸⁴⁵⁹⁹⁸ is an apocalyptic number.

845998 is a deficient number, since it is larger than the sum of its proper divisors (433082).

845998 is a wasteful number, since it uses less digits than its factorization.

845998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362.

The product of its digits is 103680, while the sum is 43.

The square root of 845998 is about 919.7814957913. The cubic root of 845998 is about 94.5779243976.

The spelling of 845998 in words is "eight hundred forty-five thousand, nine hundred ninety-eight".