5721722 has 8 divisors (see below), whose sum is σ = 8613972. Its totient is φ = 2850400.

The previous prime is 5721719. The next prime is 5721743. The reversal of 5721722 is 2271275.

It can be written as a sum of positive squares in 2 ways, for example, as 5612161 + 109561 = 2369^2 + 331^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 5721691 and 5721700.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4529 + ... + 5652.

Almost surely, 2^5721722 is an apocalyptic number.

5721722 is a deficient number, since it is larger than the sum of its proper divisors (2892250).

5721722 is a wasteful number, since it uses less digits than its factorization.

5721722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10464.

The product of its digits is 1960, while the sum is 26.

The square root of 5721722 is about 2392.0121237151. The cubic root of 5721722 is about 178.8582254938.

Adding to 5721722 its reverse (2271275), we get a palindrome (7992997).

The spelling of 5721722 in words is "five million, seven hundred twenty-one thousand, seven hundred twenty-two".