2321722 has 12 divisors (see below), whose sum is σ = 3771630. Its totient is φ = 1071408.

The previous prime is 2321701. The next prime is 2321747. The reversal of 2321722 is 2271232.

It can be written as a sum of positive squares in 3 ways, for example, as 447561 + 1874161 = 669^2 + 1369^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2321722.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3097 + ... + 3772.

2^2321722 is an apocalyptic number.

2321722 is a deficient number, since it is larger than the sum of its proper divisors (1449908).

2321722 is a wasteful number, since it uses less digits than its factorization.

2321722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6897 (or 6884 counting only the distinct ones).

The product of its digits is 336, while the sum is 19.

The square root of 2321722 is about 1523.7197905127. The cubic root of 2321722 is about 132.4148640225.

Adding to 2321722 its reverse (2271232), we get a palindrome (4592954).

The spelling of 2321722 in words is "two million, three hundred twenty-one thousand, seven hundred twenty-two".