6938646 has 32 divisors (see below), whose sum is σ = 16305408. Its totient is φ = 1940640.

The previous prime is 6938623. The next prime is 6938651. The reversal of 6938646 is 6468396.

It is a d-powerful number, because it can be written as 6² + 9⁶ + 3¹² + 8³ + 6⁴ + 4¹¹ + 6⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 6938598 and 6938607.

It is a congruent 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, 3186 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (509544).

Almost surely, 2^6938646 is an apocalyptic number.

6938646 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6938646 is an abundant number, since it is smaller than the sum of its proper divisors (9366762).

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

6938646 is a wasteful number, since it uses less digits than its factorization.

6938646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8116.

The product of its digits is 186624, while the sum is 42.

The square root of 6938646 is about 2634.1309762424. The cubic root of 6938646 is about 190.7325918106.

It can be divided in two parts, 693 and 8646, that added together give a palindrome (9339).

The spelling of 6938646 in words is "six million, nine hundred thirty-eight thousand, six hundred forty-six".