6386538 has 16 divisors (see below), whose sum is σ = 12801600. Its totient is φ = 2124096.

The previous prime is 6386531. The next prime is 6386557. The reversal of 6386538 is 8356836.

It is a junction number, because it is equal to n+sod(n) for n = 6386496 and 6386505.

It is not an unprimeable number, because it can be changed into a prime (6386531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2706 + ... + 4482.

It is an arithmetic number, because the mean of its divisors is an integer number (800100).

Almost surely, 2^6386538 is an apocalyptic number.

6386538 is an abundant number, since it is smaller than the sum of its proper divisors (6415062).

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

6386538 is a wasteful number, since it uses less digits than its factorization.

6386538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381.

The product of its digits is 103680, while the sum is 39.

The square root of 6386538 is about 2527.1600661612. The cubic root of 6386538 is about 185.5332847377.

It can be divided in two parts, 63865 and 38, that added together give a triangular number (63903 = T₃₅₇).

The spelling of 6386538 in words is "six million, three hundred eighty-six thousand, five hundred thirty-eight".