6428886 has 16 divisors (see below), whose sum is σ = 12885168. Its totient is φ = 2138400.

The previous prime is 6428879. The next prime is 6428921. The reversal of 6428886 is 6888246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3156 + ... + 4776.

It is an arithmetic number, because the mean of its divisors is an integer number (805323).

Almost surely, 2^6428886 is an apocalyptic number.

6428886 is an abundant number, since it is smaller than the sum of its proper divisors (6456282).

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

6428886 is a wasteful number, since it uses less digits than its factorization.

6428886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287.

The product of its digits is 147456, while the sum is 42.

The square root of 6428886 is about 2535.5247977490. The cubic root of 6428886 is about 185.9424611015.

The spelling of 6428886 in words is "six million, four hundred twenty-eight thousand, eight hundred eighty-six".