8729115 has 8 divisors (see below), whose sum is σ = 13966608. Its totient is φ = 4655520.

The previous prime is 8729107. The next prime is 8729117. The reversal of 8729115 is 5119278.

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

It is not a de Polignac number, because 8729115 - 2³ = 8729107 is a prime.

8729115 is a lucky number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (8729117) 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, 290956 + ... + 290985.

It is an arithmetic number, because the mean of its divisors is an integer number (1745826).

Almost surely, 2^8729115 is an apocalyptic number.

8729115 is a deficient number, since it is larger than the sum of its proper divisors (5237493).

8729115 is a wasteful number, since it uses less digits than its factorization.

8729115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581949.

The product of its digits is 5040, while the sum is 33.

The square root of 8729115 is about 2954.5075731837. The cubic root of 8729115 is about 205.9001857223.

The spelling of 8729115 in words is "eight million, seven hundred twenty-nine thousand, one hundred fifteen".