5720657 has 2 divisors, whose sum is σ = 5720658. Its totient is φ = 5720656.

The previous prime is 5720621. The next prime is 5720707. The reversal of 5720657 is 7560275.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4857616 + 863041 = 2204^2 + 929^2 .

It is a cyclic number.

It is not a de Polignac number, because 5720657 - 2⁸ = 5720401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5729657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2860328 + 2860329.

It is an arithmetic number, because the mean of its divisors is an integer number (2860329).

Almost surely, 2^5720657 is an apocalyptic number.

It is an amenable number.

5720657 is a deficient number, since it is larger than the sum of its proper divisors (1).

5720657 is an equidigital number, since it uses as much as digits as its factorization.

5720657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 5720657 is about 2391.7894974266. The cubic root of 5720657 is about 178.8471276792.

The spelling of 5720657 in words is "five million, seven hundred twenty thousand, six hundred fifty-seven".