6386634 has 32 divisors (see below), whose sum is σ = 14345280. Its totient is φ = 2106000.

The previous prime is 6386623. The next prime is 6386669. The reversal of 6386634 is 4366836.

6386634 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 6 + 3¹³ + 8 + 6⁴ + 6⁵ + 3¹⁴ + 4⁴ .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4869 + ... + 6039.

It is an arithmetic number, because the mean of its divisors is an integer number (448290).

Almost surely, 2^6386634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6386634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7172640).

6386634 is an abundant number, since it is smaller than the sum of its proper divisors (7958646).

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

6386634 is a wasteful number, since it uses less digits than its factorization.

6386634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283 (or 1277 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 6386634 is about 2527.1790597423. The cubic root of 6386634 is about 185.5342143548.

The spelling of 6386634 in words is "six million, three hundred eighty-six thousand, six hundred thirty-four".