985390 has 24 divisors (see below), whose sum is σ = 2064312. Its totient is φ = 337680.

The previous prime is 985379. The next prime is 985399. The reversal of 985390 is 93589.

985390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985399) by changing a digit.

985390 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 516 + ... + 1495.

It is an arithmetic number, because the mean of its divisors is an integer number (86013).

2⁹⁸⁵³⁹⁰ is an apocalyptic number.

985390 is an abundant number, since it is smaller than the sum of its proper divisors (1078922).

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

985390 is a wasteful number, since it uses less digits than its factorization.

985390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032 (or 2025 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 985390 is about 992.6681217809. The cubic root of 985390 is about 99.5106088703.

The spelling of 985390 in words is "nine hundred eighty-five thousand, three hundred ninety".