715681697 has 4 divisors (see below), whose sum is σ = 717431940. Its totient is φ = 713931456.

The previous prime is 715681679. The next prime is 715681711. The reversal of 715681697 is 796186517.

715681697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 564490081 + 151191616 = 23759^2 + 12296^2 .

It is a cyclic number.

It is not a de Polignac number, because 715681697 - 2¹⁸ = 715419553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (715681297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874508 + ... + 875325.

It is an arithmetic number, because the mean of its divisors is an integer number (179357985).

Almost surely, 2^715681697 is an apocalyptic number.

It is an amenable number.

715681697 is a deficient number, since it is larger than the sum of its proper divisors (1750243).

715681697 is a wasteful number, since it uses less digits than its factorization.

715681697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750242.

The product of its digits is 635040, while the sum is 50.

The square root of 715681697 is about 26752.2278885329. The cubic root of 715681697 is about 894.4854972823.

The spelling of 715681697 in words is "seven hundred fifteen million, six hundred eighty-one thousand, six hundred ninety-seven".