868072705 has 8 divisors (see below), whose sum is σ = 1067094504. Its totient is φ = 677520000.

The previous prime is 868072669. The next prime is 868072721. The reversal of 868072705 is 507270868.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 96510976 + 771561729 = 9824^2 + 27777^2 .

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

It is not a de Polignac number, because 868072705 - 2⁹ = 868072193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2117046 + ... + 2117455.

It is an arithmetic number, because the mean of its divisors is an integer number (133386813).

Almost surely, 2^868072705 is an apocalyptic number.

It is an amenable number.

868072705 is a deficient number, since it is larger than the sum of its proper divisors (199021799).

868072705 is a wasteful number, since it uses less digits than its factorization.

868072705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4234547.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 868072705 is about 29463.0735837251. The cubic root of 868072705 is about 953.9348174080.

The spelling of 868072705 in words is "eight hundred sixty-eight million, seventy-two thousand, seven hundred five".