985634 has 16 divisors (see below), whose sum is σ = 1608768. Its totient is φ = 450192.

The previous prime is 985631. The next prime is 985639. The reversal of 985634 is 436589.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 985594 and 985603.

It is not an unprimeable number, because it can be changed into a prime (985631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4229 + ... + 4455.

It is an arithmetic number, because the mean of its divisors is an integer number (100548).

2⁹⁸⁵⁶³⁴ is an apocalyptic number.

985634 is a deficient number, since it is larger than the sum of its proper divisors (623134).

985634 is a wasteful number, since it uses less digits than its factorization.

985634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its digits is 25920, while the sum is 35.

The square root of 985634 is about 992.7910152696. The cubic root of 985634 is about 99.5188217216.

The spelling of 985634 in words is "nine hundred eighty-five thousand, six hundred thirty-four".