987279 has 8 divisors (see below), whose sum is σ = 1324032. Its totient is φ = 654360.

The previous prime is 987251. The next prime is 987293. The reversal of 987279 is 972789.

987279 is nontrivially palindromic in base 2.

987279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 987279 - 2⁸ = 987023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 987279.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987279.

It is not an unprimeable number, because it can be changed into a prime (987209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289 + ... + 1434.

It is an arithmetic number, because the mean of its divisors is an integer number (165504).

2⁹⁸⁷²⁷⁹ is an apocalyptic number.

987279 is a deficient number, since it is larger than the sum of its proper divisors (336753).

987279 is a wasteful number, since it uses less digits than its factorization.

987279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917.

The product of its digits is 63504, while the sum is 42.

The square root of 987279 is about 993.6191423277. The cubic root of 987279 is about 99.5741558080.

The spelling of 987279 in words is "nine hundred eighty-seven thousand, two hundred seventy-nine".