860805361 has 8 divisors (see below), whose sum is σ = 928408040. Its totient is φ = 793400832.

The previous prime is 860805313. The next prime is 860805371. The reversal of 860805361 is 163508068.

It can be written as a sum of positive squares in 4 ways, for example, as 45360225 + 815445136 = 6735^2 + 28556^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 860805361 - 2⁹ = 860804849 is a prime.

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 860805361.

It is not an unprimeable number, because it can be changed into a prime (860805371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40446 + ... + 57943.

It is an arithmetic number, because the mean of its divisors is an integer number (116051005).

Almost surely, 2^860805361 is an apocalyptic number.

It is an amenable number.

860805361 is a deficient number, since it is larger than the sum of its proper divisors (67602679).

860805361 is a wasteful number, since it uses less digits than its factorization.

860805361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99075.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 860805361 is about 29339.4846750927. The cubic root of 860805361 is about 951.2652986811.

The spelling of 860805361 in words is "eight hundred sixty million, eight hundred five thousand, three hundred sixty-one".