985711 has 8 divisors (see below), whose sum is σ = 1089504. Its totient is φ = 887040.

The previous prime is 985709. The next prime is 985723. The reversal of 985711 is 117589.

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 985711 - 2¹ = 985709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985741) 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, 870 + ... + 1651.

It is an arithmetic number, because the mean of its divisors is an integer number (136188).

2⁹⁸⁵⁷¹¹ is an apocalyptic number.

985711 is a deficient number, since it is larger than the sum of its proper divisors (103793).

985711 is a wasteful number, since it uses less digits than its factorization.

985711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561.

The product of its digits is 2520, while the sum is 31.

The square root of 985711 is about 992.8297940735. The cubic root of 985711 is about 99.5214132007.

The spelling of 985711 in words is "nine hundred eighty-five thousand, seven hundred eleven".