6428417 has 4 divisors (see below), whose sum is σ = 6602196. Its totient is φ = 6254640.

The previous prime is 6428407. The next prime is 6428419. The reversal of 6428417 is 7148246.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4145296 + 2283121 = 2036^2 + 1511^2 .

It is a cyclic number.

It is not a de Polignac number, because 6428417 - 2⁶ = 6428353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6428419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86834 + ... + 86907.

It is an arithmetic number, because the mean of its divisors is an integer number (1650549).

Almost surely, 2^6428417 is an apocalyptic number.

It is an amenable number.

6428417 is a deficient number, since it is larger than the sum of its proper divisors (173779).

6428417 is a wasteful number, since it uses less digits than its factorization.

6428417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173778.

The product of its digits is 10752, while the sum is 32.

The square root of 6428417 is about 2535.4323102777. The cubic root of 6428417 is about 185.9379393677.

The spelling of 6428417 in words is "six million, four hundred twenty-eight thousand, four hundred seventeen".