6478626 has 64 divisors (see below), whose sum is σ = 16634880. Its totient is φ = 1632960.

The previous prime is 6478607. The next prime is 6478631. The reversal of 6478626 is 6268746.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16905 + ... + 17283.

It is an arithmetic number, because the mean of its divisors is an integer number (259920).

Almost surely, 2^6478626 is an apocalyptic number.

6478626 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6478626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8317440).

6478626 is an abundant number, since it is smaller than the sum of its proper divisors (10156254).

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

6478626 is a wasteful number, since it uses less digits than its factorization.

6478626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its digits is 96768, while the sum is 39.

The square root of 6478626 is about 2545.3145188758. The cubic root of 6478626 is about 186.4207724583.

The spelling of 6478626 in words is "six million, four hundred seventy-eight thousand, six hundred twenty-six".