8998722 has 16 divisors (see below), whose sum is σ = 19997280. Its totient is φ = 2999556.

The previous prime is 8998709. The next prime is 8998747. The reversal of 8998722 is 2278998.

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, 83268 + ... + 83375.

It is an arithmetic number, because the mean of its divisors is an integer number (1249830).

Almost surely, 2^8998722 is an apocalyptic number.

8998722 is an abundant number, since it is smaller than the sum of its proper divisors (10998558).

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

8998722 is a wasteful number, since it uses less digits than its factorization.

8998722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166654 (or 166648 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 8998722 is about 2999.7869924380. The cubic root of 8998722 is about 207.9985361090.

It can be divided in two parts, 89987 and 22, that added together give a palindrome (90009).

The spelling of 8998722 in words is "eight million, nine hundred ninety-eight thousand, seven hundred twenty-two".