79287 has 16 divisors (see below), whose sum is σ = 120960. Its totient is φ = 45792.

The previous prime is 79283. The next prime is 79301. The reversal of 79287 is 78297.

It is not a de Polignac number, because 79287 - 2² = 79283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79283) 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, 688 + ... + 794.

It is an arithmetic number, because the mean of its divisors is an integer number (7560).

2⁷⁹²⁸⁷ is an apocalyptic number.

79287 is a deficient number, since it is larger than the sum of its proper divisors (41673).

79287 is a wasteful number, since it uses less digits than its factorization.

79287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142.

The product of its digits is 7056, while the sum is 33.

The square root of 79287 is about 281.5794736837. The cubic root of 79287 is about 42.9603022842.

Subtracting from 79287 its reverse (78297), we obtain a triangular number (990 = T₄₄).

The spelling of 79287 in words is "seventy-nine thousand, two hundred eighty-seven".