8722915 has 4 divisors (see below), whose sum is σ = 10467504. Its totient is φ = 6978328.

The previous prime is 8722913. The next prime is 8722949. The reversal of 8722915 is 5192278.

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

It is a cyclic number.

It is not a de Polignac number, because 8722915 - 2¹ = 8722913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8722913) 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, 872287 + ... + 872296.

It is an arithmetic number, because the mean of its divisors is an integer number (2616876).

Almost surely, 2^8722915 is an apocalyptic number.

8722915 is a deficient number, since it is larger than the sum of its proper divisors (1744589).

8722915 is a wasteful number, since it uses less digits than its factorization.

8722915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744588.

The product of its digits is 10080, while the sum is 34.

The square root of 8722915 is about 2953.4581425847. The cubic root of 8722915 is about 205.8514261589.

The spelling of 8722915 in words is "eight million, seven hundred twenty-two thousand, nine hundred fifteen".