985641 has 8 divisors (see below), whose sum is σ = 1339200. Its totient is φ = 644592.

The previous prime is 985639. The next prime is 985657. The reversal of 985641 is 146589.

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

It is not a de Polignac number, because 985641 - 2¹ = 985639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (985601) 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, 2941 + ... + 3258.

It is an arithmetic number, because the mean of its divisors is an integer number (167400).

2⁹⁸⁵⁶⁴¹ is an apocalyptic number.

It is an amenable number.

985641 is a deficient number, since it is larger than the sum of its proper divisors (353559).

985641 is a wasteful number, since it uses less digits than its factorization.

985641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6255.

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

The square root of 985641 is about 992.7945406780. The cubic root of 985641 is about 99.5190573162.

The spelling of 985641 in words is "nine hundred eighty-five thousand, six hundred forty-one".