6428355 has 8 divisors (see below), whose sum is σ = 10285392. Its totient is φ = 3428448.

The previous prime is 6428353. The next prime is 6428369. The reversal of 6428355 is 5538246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6428355 - 2¹ = 6428353 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁷ + 4¹¹ + 2⁷ + 8 + 3⁶ + 5³ + 5⁹ .

It is not an unprimeable number, because it can be changed into a prime (6428353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214264 + ... + 214293.

It is an arithmetic number, because the mean of its divisors is an integer number (1285674).

Almost surely, 2^6428355 is an apocalyptic number.

6428355 is a deficient number, since it is larger than the sum of its proper divisors (3857037).

6428355 is a wasteful number, since it uses less digits than its factorization.

6428355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428565.

The product of its digits is 28800, while the sum is 33.

The square root of 6428355 is about 2535.4200835365. The cubic root of 6428355 is about 185.9373415953.

The spelling of 6428355 in words is "six million, four hundred twenty-eight thousand, three hundred fifty-five".