6428830 has 16 divisors (see below), whose sum is σ = 11635344. Its totient is φ = 2557440.

The previous prime is 6428827. The next prime is 6428833. The reversal of 6428830 is 388246.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6428827) and next prime (6428833).

It is a junction number, because it is equal to n+sod(n) for n = 6428792 and 6428801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6428833) 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, 265 + ... + 3595.

It is an arithmetic number, because the mean of its divisors is an integer number (727209).

Almost surely, 2^6428830 is an apocalyptic number.

6428830 is a deficient number, since it is larger than the sum of its proper divisors (5206514).

6428830 is a wasteful number, since it uses less digits than its factorization.

6428830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 6428830 is about 2535.5137546462. The cubic root of 6428830 is about 185.9419212046.

The spelling of 6428830 in words is "six million, four hundred twenty-eight thousand, eight hundred thirty".