987179 has 4 divisors (see below), whose sum is σ = 1000776. Its totient is φ = 973584.

The previous prime is 987143. The next prime is 987191. The reversal of 987179 is 971789.

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 987179 - 2¹² = 983083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (987199) 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, 6689 + ... + 6834.

It is an arithmetic number, because the mean of its divisors is an integer number (250194).

2⁹⁸⁷¹⁷⁹ is an apocalyptic number.

987179 is a deficient number, since it is larger than the sum of its proper divisors (13597).

987179 is a wasteful number, since it uses less digits than its factorization.

987179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13596.

The product of its digits is 31752, while the sum is 41.

The square root of 987179 is about 993.5688199617. The cubic root of 987179 is about 99.5707937892.

The spelling of 987179 in words is "nine hundred eighty-seven thousand, one hundred seventy-nine".