6428670 has 32 divisors (see below), whose sum is σ = 15495840. Its totient is φ = 1706880.

The previous prime is 6428651. The next prime is 6428671. The reversal of 6428670 is 768246.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6428671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12376 + ... + 12884.

It is an arithmetic number, because the mean of its divisors is an integer number (484245).

Almost surely, 2^6428670 is an apocalyptic number.

6428670 is an abundant number, since it is smaller than the sum of its proper divisors (9067170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6428670 is a wasteful number, since it uses less digits than its factorization.

6428670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 6428670 is about 2535.4822026589. The cubic root of 6428670 is about 185.9403786245.

The spelling of 6428670 in words is "six million, four hundred twenty-eight thousand, six hundred seventy".