868747715 has 16 divisors (see below), whose sum is σ = 1138082400. Its totient is φ = 631365120.

The previous prime is 868747703. The next prime is 868747717. The reversal of 868747715 is 517747868.

It is a de Polignac number, because none of the positive numbers 2^k-868747715 is a prime.

It is not an unprimeable number, because it can be changed into a prime (868747717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85211 + ... + 94859.

It is an arithmetic number, because the mean of its divisors is an integer number (71130150).

Almost surely, 2^868747715 is an apocalyptic number.

868747715 is a deficient number, since it is larger than the sum of its proper divisors (269334685).

868747715 is a wasteful number, since it uses less digits than its factorization.

868747715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11302.

The product of its digits is 2634240, while the sum is 53.

The square root of 868747715 is about 29474.5265441194. The cubic root of 868747715 is about 954.1820120294.

The spelling of 868747715 in words is "eight hundred sixty-eight million, seven hundred forty-seven thousand, seven hundred fifteen".