6428868 has 24 divisors (see below), whose sum is σ = 15653568. Its totient is φ = 2049696.

The previous prime is 6428857. The next prime is 6428879. The reversal of 6428868 is 8688246.

It is an interprime number because it is at equal distance from previous prime (6428857) and next prime (6428879).

It is a super-2 number, since 2×6428868² = 82660687522848, which contains 22 as substring.

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, 11371 + ... + 11922.

It is an arithmetic number, because the mean of its divisors is an integer number (652232).

Almost surely, 2^6428868 is an apocalyptic number.

It is an amenable number.

6428868 is an abundant number, since it is smaller than the sum of its proper divisors (9224700).

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

6428868 is a wasteful number, since it uses less digits than its factorization.

6428868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23323 (or 23321 counting only the distinct ones).

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

The square root of 6428868 is about 2535.5212481855. The cubic root of 6428868 is about 185.9422875636.

The spelling of 6428868 in words is "six million, four hundred twenty-eight thousand, eight hundred sixty-eight".