986791 has 6 divisors (see below), whose sum is σ = 1068720. Its totient is φ = 910728.

The previous prime is 986779. The next prime is 986801. The reversal of 986791 is 197689.

It is not a de Polignac number, because 986791 - 2⁵ = 986759 is a prime.

It is a Duffinian number.

986791 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2751 + ... + 3088.

It is an arithmetic number, because the mean of its divisors is an integer number (178120).

2⁹⁸⁶⁷⁹¹ is an apocalyptic number.

986791 is a deficient number, since it is larger than the sum of its proper divisors (81929).

986791 is a wasteful number, since it uses less digits than its factorization.

986791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5865 (or 5852 counting only the distinct ones).

The product of its digits is 27216, while the sum is 40.

The square root of 986791 is about 993.3735450474. The cubic root of 986791 is about 99.5577470062.

It can be divided in two parts, 98 and 6791, that added together give a square (6889 = 83²).

The spelling of 986791 in words is "nine hundred eighty-six thousand, seven hundred ninety-one".