6938864 has 10 divisors (see below), whose sum is σ = 13444080. Its totient is φ = 3469424.

The previous prime is 6938861. The next prime is 6938891. The reversal of 6938864 is 4688396.

It is a super-2 number, since 2×6938864² = 96295667220992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6938861) by changing a digit.

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 as a sum of consecutive naturals, namely, 216824 + ... + 216855.

It is an arithmetic number, because the mean of its divisors is an integer number (1344408).

Almost surely, 2^6938864 is an apocalyptic number.

It is an amenable number.

6938864 is a deficient number, since it is larger than the sum of its proper divisors (6505216).

6938864 is a wasteful number, since it uses less digits than its factorization.

6938864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433687 (or 433681 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 6938864 is about 2634.1723557884. The cubic root of 6938864 is about 190.7345892834.

The spelling of 6938864 in words is "six million, nine hundred thirty-eight thousand, eight hundred sixty-four".