987679 has 16 divisors (see below), whose sum is σ = 1253376. Its totient is φ = 756000.

The previous prime is 987659. The next prime is 987697. The reversal of 987679 is 976789.

987679 is nontrivially palindromic in base 16.

It is not a de Polignac number, because 987679 - 2¹¹ = 985631 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 (987659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7714 + ... + 7840.

It is an arithmetic number, because the mean of its divisors is an integer number (78336).

2⁹⁸⁷⁶⁷⁹ is an apocalyptic number.

987679 is a deficient number, since it is larger than the sum of its proper divisors (265697).

987679 is a wasteful number, since it uses less digits than its factorization.

987679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246.

The product of its digits is 190512, while the sum is 46.

The square root of 987679 is about 993.8204063109. The cubic root of 987679 is about 99.5876016136.

It can be divided in two parts, 98 and 7679, that added together give a palindrome (7777).

The spelling of 987679 in words is "nine hundred eighty-seven thousand, six hundred seventy-nine".