6428573 has 2 divisors, whose sum is σ = 6428574. Its totient is φ = 6428572.

The previous prime is 6428551. The next prime is 6428623. The reversal of 6428573 is 3758246.

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., 5257849 + 1170724 = 2293^2 + 1082^2 .

It is a cyclic number.

It is not a de Polignac number, because 6428573 - 2²² = 2234269 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 6⁷ + 4¹¹ + 2⁷ + 8 + 5⁹ + 7³ + 3⁶ .

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6428173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214286 + 3214287.

It is an arithmetic number, because the mean of its divisors is an integer number (3214287).

Almost surely, 2^6428573 is an apocalyptic number.

It is an amenable number.

6428573 is a deficient number, since it is larger than the sum of its proper divisors (1).

6428573 is an equidigital number, since it uses as much as digits as its factorization.

6428573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 6428573 is about 2535.4630740754. The cubic root of 6428573 is about 185.9394434229.

The spelling of 6428573 in words is "six million, four hundred twenty-eight thousand, five hundred seventy-three".