6406828 has 18 divisors (see below), whose sum is σ = 11532444. Its totient is φ = 3112704.

The previous prime is 6406823. The next prime is 6406831. The reversal of 6406828 is 8286046.

It is a junction number, because it is equal to n+sod(n) for n = 6406793 and 6406802.

It is not an unprimeable number, because it can be changed into a prime (6406823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33100 + ... + 33292.

Almost surely, 2^6406828 is an apocalyptic number.

It is an amenable number.

6406828 is a deficient number, since it is larger than the sum of its proper divisors (5125616).

6406828 is a wasteful number, since it uses less digits than its factorization.

6406828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 6406828 is about 2531.1712703806. The cubic root of 6406828 is about 185.7295564789.

The spelling of 6406828 in words is "six million, four hundred six thousand, eight hundred twenty-eight".