715729 has 8 divisors (see below), whose sum is σ = 832320. Its totient is φ = 602736.

The previous prime is 715727. The next prime is 715739. The reversal of 715729 is 927517.

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 715729 - 2¹ = 715727 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 715729.

It is not an unprimeable number, because it can be changed into a prime (715727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454 + ... + 1279.

It is an arithmetic number, because the mean of its divisors is an integer number (104040).

2⁷¹⁵⁷²⁹ is an apocalyptic number.

It is an amenable number.

715729 is a deficient number, since it is larger than the sum of its proper divisors (116591).

715729 is a wasteful number, since it uses less digits than its factorization.

715729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799.

The product of its digits is 4410, while the sum is 31.

The square root of 715729 is about 846.0076831802. The cubic root of 715729 is about 89.4505203862.

It can be divided in two parts, 715 and 729, that added together give a square (1444 = 38²).

The spelling of 715729 in words is "seven hundred fifteen thousand, seven hundred twenty-nine".