872999 has 2 divisors, whose sum is σ = 873000. Its totient is φ = 872998.

The previous prime is 872959. The next prime is 873017. The reversal of 872999 is 999278.

872999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 872999 - 2¹⁶ = 807463 is a prime.

872999 is a modest number, since divided by 999 gives 872 as remainder.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436499 + 436500.

It is an arithmetic number, because the mean of its divisors is an integer number (436500).

2⁸⁷²⁹⁹⁹ is an apocalyptic number.

872999 is a deficient number, since it is larger than the sum of its proper divisors (1).

872999 is an equidigital number, since it uses as much as digits as its factorization.

872999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 44.

The square root of 872999 is about 934.3441550093. The cubic root of 872999 is about 95.5735934840.

The spelling of 872999 in words is "eight hundred seventy-two thousand, nine hundred ninety-nine".