860722247 has 12 divisors (see below), whose sum is σ = 1081238928. Its totient is φ = 670692000.

The previous prime is 860722217. The next prime is 860722253. The reversal of 860722247 is 742227068.

It is a happy number.

860722247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 860722247 - 2⁶ = 860722183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 860722247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860722207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 507254 + ... + 508947.

It is an arithmetic number, because the mean of its divisors is an integer number (90103244).

Almost surely, 2^860722247 is an apocalyptic number.

860722247 is a deficient number, since it is larger than the sum of its proper divisors (220516681).

860722247 is a wasteful number, since it uses less digits than its factorization.

860722247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016230 (or 1016219 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 860722247 is about 29338.0682220217. The cubic root of 860722247 is about 951.2346816131.

The spelling of 860722247 in words is "eight hundred sixty million, seven hundred twenty-two thousand, two hundred forty-seven".