6386738 has 6 divisors (see below), whose sum is σ = 9585471. Its totient is φ = 3191582.

The previous prime is 6386719. The next prime is 6386749. The reversal of 6386738 is 8376836.

It can be written as a sum of positive squares in only one way, i.e., 3193369 + 3193369 = 1787^2 + 1787^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1787.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6386695 and 6386704.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2681 + ... + 4467.

Almost surely, 2^6386738 is an apocalyptic number.

6386738 is a deficient number, since it is larger than the sum of its proper divisors (3198733).

6386738 is an frugal number, since it uses more digits than its factorization.

6386738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576 (or 1789 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 6386738 is about 2527.1996359607. The cubic root of 6386738 is about 185.5352214296.

The spelling of 6386738 in words is "six million, three hundred eighty-six thousand, seven hundred thirty-eight".