985637 has 8 divisors (see below), whose sum is σ = 1024896. Its totient is φ = 947232.

The previous prime is 985631. The next prime is 985639. The reversal of 985637 is 736589.

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

It is a cyclic number.

It is not a de Polignac number, because 985637 - 2¹⁴ = 969253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 985637.

It is a congruent number.

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, 2993 + ... + 3305.

It is an arithmetic number, because the mean of its divisors is an integer number (128112).

2⁹⁸⁵⁶³⁷ is an apocalyptic number.

It is an amenable number.

985637 is a deficient number, since it is larger than the sum of its proper divisors (39259).

985637 is a wasteful number, since it uses less digits than its factorization.

985637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427.

The product of its digits is 45360, while the sum is 38.

The square root of 985637 is about 992.7925261604. The cubic root of 985637 is about 99.5189226908.

The spelling of 985637 in words is "nine hundred eighty-five thousand, six hundred thirty-seven".