9021722 has 16 divisors (see below), whose sum is σ = 13948200. Its totient is φ = 4373760.

The previous prime is 9021709. The next prime is 9021731. The reversal of 9021722 is 2271209.

It can be written as a sum of positive squares in 4 ways, for example, as 5331481 + 3690241 = 2309^2 + 1921^2 .

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, 21854 + ... + 22262.

Almost surely, 2^9021722 is an apocalyptic number.

9021722 is a deficient number, since it is larger than the sum of its proper divisors (4926478).

9021722 is a wasteful number, since it uses less digits than its factorization.

9021722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 9021722 is about 3003.6181514966. The cubic root of 9021722 is about 208.1755944476.

It can be divided in two parts, 90 and 21722, that added together give a palindrome (21812).

The spelling of 9021722 in words is "nine million, twenty-one thousand, seven hundred twenty-two".