860345 has 4 divisors (see below), whose sum is σ = 1032420. Its totient is φ = 688272.

The previous prime is 860341. The next prime is 860351. The reversal of 860345 is 543068.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 573049 + 287296 = 757^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 860345 - 2² = 860341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (860341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86030 + ... + 86039.

It is an arithmetic number, because the mean of its divisors is an integer number (258105).

2⁸⁶⁰³⁴⁵ is an apocalyptic number.

It is an amenable number.

860345 is a deficient number, since it is larger than the sum of its proper divisors (172075).

860345 is a wasteful number, since it uses less digits than its factorization.

860345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172074.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 860345 is about 927.5478424319. The cubic root of 860345 is about 95.1095688703.

The spelling of 860345 in words is "eight hundred sixty thousand, three hundred forty-five".