985723711 has 4 divisors (see below), whose sum is σ = 1126541392. Its totient is φ = 844906032.

The previous prime is 985723703. The next prime is 985723723. The reversal of 985723711 is 117327589.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 985723711 - 2³ = 985723703 is a prime.

It is a super-3 number, since 3×985723711³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985723751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70408830 + ... + 70408843.

It is an arithmetic number, because the mean of its divisors is an integer number (281635348).

Almost surely, 2^985723711 is an apocalyptic number.

985723711 is a deficient number, since it is larger than the sum of its proper divisors (140817681).

985723711 is a wasteful number, since it uses less digits than its factorization.

985723711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140817680.

The product of its digits is 105840, while the sum is 43.

The square root of 985723711 is about 31396.2372108506. The cubic root of 985723711 is about 995.2184098370.

The spelling of 985723711 in words is "nine hundred eighty-five million, seven hundred twenty-three thousand, seven hundred eleven".