860247 has 16 divisors (see below), whose sum is σ = 1288960. Its totient is φ = 567000.

The previous prime is 860239. The next prime is 860257. The reversal of 860247 is 742068.

It is not a de Polignac number, because 860247 - 2³ = 860239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 860247.

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 860247.

It is not an unprimeable number, because it can be changed into a prime (860257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3972 + ... + 4182.

It is an arithmetic number, because the mean of its divisors is an integer number (80560).

2⁸⁶⁰²⁴⁷ is an apocalyptic number.

860247 is a deficient number, since it is larger than the sum of its proper divisors (428713).

860247 is a wasteful number, since it uses less digits than its factorization.

860247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 860247 is about 927.4950134637. The cubic root of 860247 is about 95.1059574928.

It can be divided in two parts, 8602 and 47, that added together give a square (8649 = 93²).

The spelling of 860247 in words is "eight hundred sixty thousand, two hundred forty-seven".