860245321 has 6 divisors (see below), whose sum is σ = 931508430. Its totient is φ = 794072448.

The previous prime is 860245307. The next prime is 860245343. The reversal of 860245321 is 123542068.

It can be written as a sum of positive squares in 3 ways, for example, as 108388921 + 751856400 = 10411^2 + 27420^2 .

It is not a de Polignac number, because 860245321 - 2¹³ = 860237129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (860255321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2544936 + ... + 2545273.

It is an arithmetic number, because the mean of its divisors is an integer number (155251405).

Almost surely, 2^860245321 is an apocalyptic number.

It is an amenable number.

860245321 is a deficient number, since it is larger than the sum of its proper divisors (71263109).

860245321 is a wasteful number, since it uses less digits than its factorization.

860245321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090235 (or 5090222 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 860245321 is about 29329.9389873215. The cubic root of 860245321 is about 951.0589561796.

Adding to 860245321 its reverse (123542068), we get a palindrome (983787389).

The spelling of 860245321 in words is "eight hundred sixty million, two hundred forty-five thousand, three hundred twenty-one".