5721697 has 2 divisors, whose sum is σ = 5721698. Its totient is φ = 5721696.

The previous prime is 5721691. The next prime is 5721713. The reversal of 5721697 is 7961275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5564881 + 156816 = 2359^2 + 396^2 .

It is a cyclic number.

It is not a de Polignac number, because 5721697 - 2³ = 5721689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5721691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2860848 + 2860849.

It is an arithmetic number, because the mean of its divisors is an integer number (2860849).

Almost surely, 2^5721697 is an apocalyptic number.

It is an amenable number.

5721697 is a deficient number, since it is larger than the sum of its proper divisors (1).

5721697 is an equidigital number, since it uses as much as digits as its factorization.

5721697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 5721697 is about 2392.0068979834. The cubic root of 5721697 is about 178.8579649975.

The spelling of 5721697 in words is "five million, seven hundred twenty-one thousand, six hundred ninety-seven".