872015 has 8 divisors (see below), whose sum is σ = 1108080. Its totient is φ = 656512.

The previous prime is 871993. The next prime is 872017. The reversal of 872015 is 510278.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-872015 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872017) 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, 5045 + ... + 5214.

It is an arithmetic number, because the mean of its divisors is an integer number (138510).

2⁸⁷²⁰¹⁵ is an apocalyptic number.

872015 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

872015 is a deficient number, since it is larger than the sum of its proper divisors (236065).

872015 is a wasteful number, since it uses less digits than its factorization.

872015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10281.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 872015 is about 933.8174339773. The cubic root of 872015 is about 95.5376714222.

The spelling of 872015 in words is "eight hundred seventy-two thousand, fifteen".