6386478 has 32 divisors (see below), whose sum is σ = 14804736. Its totient is φ = 1798848.

The previous prime is 6386473. The next prime is 6386483. The reversal of 6386478 is 8746836.

6386478 is digitally balanced in base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6386473) and next prime (6386483).

It is a Harshad number since it is a multiple of its sum of digits (42).

6386478 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6386473) 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, 2025 + ... + 4107.

It is an arithmetic number, because the mean of its divisors is an integer number (462648).

Almost surely, 2^6386478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6386478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7402368).

6386478 is an abundant number, since it is smaller than the sum of its proper divisors (8418258).

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

6386478 is a wasteful number, since it uses less digits than its factorization.

6386478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168.

The product of its digits is 193536, while the sum is 42.

The square root of 6386478 is about 2527.1481951006. The cubic root of 6386478 is about 185.5327037222.

The spelling of 6386478 in words is "six million, three hundred eighty-six thousand, four hundred seventy-eight".