8729718 has 8 divisors (see below), whose sum is σ = 17459448. Its totient is φ = 2909904.

The previous prime is 8729717. The next prime is 8729729. The reversal of 8729718 is 8179278.

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

8729718 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 8729718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8729711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727471 + ... + 727482.

It is an arithmetic number, because the mean of its divisors is an integer number (2182431).

Almost surely, 2^8729718 is an apocalyptic number.

8729718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8729718 is a wasteful number, since it uses less digits than its factorization.

8729718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454958.

The product of its digits is 56448, while the sum is 42.

The square root of 8729718 is about 2954.6096188837. The cubic root of 8729718 is about 205.9049267509.

The spelling of 8729718 in words is "eight million, seven hundred twenty-nine thousand, seven hundred eighteen".