2320657 has 2 divisors, whose sum is σ = 2320658. Its totient is φ = 2320656.

The previous prime is 2320651. The next prime is 2320673. The reversal of 2320657 is 7560232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2163841 + 156816 = 1471^2 + 396^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320657 - 2³ = 2320649 is a prime.

It is a super-3 number, since 3×2320657³ = 37493339144881900179, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2320651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160328 + 1160329.

It is an arithmetic number, because the mean of its divisors is an integer number (1160329).

2^2320657 is an apocalyptic number.

It is an amenable number.

2320657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320657 is an equidigital number, since it uses as much as digits as its factorization.

2320657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 2320657 is about 1523.3702767220. The cubic root of 2320657 is about 132.3946141966.

Adding to 2320657 its reverse (7560232), we get a palindrome (9880889).

The spelling of 2320657 in words is "two million, three hundred twenty thousand, six hundred fifty-seven".