6420833 has 2 divisors, whose sum is σ = 6420834. Its totient is φ = 6420832.

The previous prime is 6420823. The next prime is 6420851. The reversal of 6420833 is 3380246.

6420833 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4963984 + 1456849 = 2228^2 + 1207^2 .

It is a cyclic number.

It is not a de Polignac number, because 6420833 - 2⁶ = 6420769 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6420823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3210416 + 3210417.

It is an arithmetic number, because the mean of its divisors is an integer number (3210417).

Almost surely, 2^6420833 is an apocalyptic number.

It is an amenable number.

6420833 is a deficient number, since it is larger than the sum of its proper divisors (1).

6420833 is an equidigital number, since it uses as much as digits as its factorization.

6420833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 6420833 is about 2533.9362659704. The cubic root of 6420833 is about 185.8647897756.

The spelling of 6420833 in words is "six million, four hundred twenty thousand, eight hundred thirty-three".