8722505 has 8 divisors (see below), whose sum is σ = 11418624. Its totient is φ = 6343600.

The previous prime is 8722499. The next prime is 8722517. The reversal of 8722505 is 5052278.

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

It is not a de Polignac number, because 8722505 - 2¹⁰ = 8721481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79241 + ... + 79350.

It is an arithmetic number, because the mean of its divisors is an integer number (1427328).

Almost surely, 2^8722505 is an apocalyptic number.

It is an amenable number.

8722505 is a deficient number, since it is larger than the sum of its proper divisors (2696119).

8722505 is a wasteful number, since it uses less digits than its factorization.

8722505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158607.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 8722505 is about 2953.3887316098. The cubic root of 8722505 is about 205.8482009218.

The spelling of 8722505 in words is "eight million, seven hundred twenty-two thousand, five hundred five".