985700687 has 4 divisors (see below), whose sum is σ = 985780320. Its totient is φ = 985621056.

The previous prime is 985700671. The next prime is 985700693. The reversal of 985700687 is 786007589.

It is a happy number.

985700687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 786007589 = 23 ⋅34174243.

It is a cyclic number.

It is not a de Polignac number, because 985700687 - 2⁴ = 985700671 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 (985700657) 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, 16823 + ... + 47480.

It is an arithmetic number, because the mean of its divisors is an integer number (246445080).

Almost surely, 2^985700687 is an apocalyptic number.

985700687 is a deficient number, since it is larger than the sum of its proper divisors (79633).

985700687 is a wasteful number, since it uses less digits than its factorization.

985700687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79632.

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 985700687 is about 31395.8705405663. The cubic root of 985700687 is about 995.2106611860.

The spelling of 985700687 in words is "nine hundred eighty-five million, seven hundred thousand, six hundred eighty-seven".