865729713 has 8 divisors (see below), whose sum is σ = 1171535008. Its totient is φ = 568538784.

The previous prime is 865729687. The next prime is 865729717. The reversal of 865729713 is 317927568.

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

It is not a de Polignac number, because 865729713 - 2⁸ = 865729457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (865729717) 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, 2153356 + ... + 2153757.

It is an arithmetic number, because the mean of its divisors is an integer number (146441876).

Almost surely, 2^865729713 is an apocalyptic number.

It is an amenable number.

865729713 is a deficient number, since it is larger than the sum of its proper divisors (305805295).

865729713 is a wasteful number, since it uses less digits than its factorization.

865729713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307183.

The product of its digits is 635040, while the sum is 48.

The square root of 865729713 is about 29423.2852176639. The cubic root of 865729713 is about 953.0757973748.

The spelling of 865729713 in words is "eight hundred sixty-five million, seven hundred twenty-nine thousand, seven hundred thirteen".