6320689 has 2 divisors, whose sum is σ = 6320690. Its totient is φ = 6320688.

The previous prime is 6320687. The next prime is 6320723. The reversal of 6320689 is 9860236.

It is a happy number.

It is an a-pointer prime, because the next prime (6320723) can be obtained adding 6320689 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6290064 + 30625 = 2508^2 + 175^2 .

It is a cyclic number.

It is not a de Polignac number, because 6320689 - 2¹ = 6320687 is a prime.

It is a super-2 number, since 2×6320689² = 79902218869442, which contains 22 as substring.

Together with 6320687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6320687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160344 + 3160345.

It is an arithmetic number, because the mean of its divisors is an integer number (3160345).

Almost surely, 2^6320689 is an apocalyptic number.

It is an amenable number.

6320689 is a deficient number, since it is larger than the sum of its proper divisors (1).

6320689 is an equidigital number, since it uses as much as digits as its factorization.

6320689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 6320689 is about 2514.0980490029. The cubic root of 6320689 is about 184.8934277840.

The spelling of 6320689 in words is "six million, three hundred twenty thousand, six hundred eighty-nine".