85398 has 16 divisors (see below), whose sum is σ = 175296. Its totient is φ = 27720.

The previous prime is 85381. The next prime is 85411. The reversal of 85398 is 89358.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93 + ... + 423.

It is an arithmetic number, because the mean of its divisors is an integer number (10956).

2⁸⁵³⁹⁸ is an apocalyptic number.

85398 is an abundant number, since it is smaller than the sum of its proper divisors (89898).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87648).

85398 is a wasteful number, since it uses less digits than its factorization.

85398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379.

The product of its digits is 8640, while the sum is 33.

The square root of 85398 is about 292.2293619745. The cubic root of 85398 is about 44.0368149183.

The spelling of 85398 in words is "eighty-five thousand, three hundred ninety-eight".