6939396 has 36 divisors (see below), whose sum is σ = 17877132. Its totient is φ = 2268864.

The previous prime is 6939367. The next prime is 6939437.

6939396 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 2143296 + 4796100 = 1464^2 + 2190^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90 + ... + 3726.

It is an arithmetic number, because the mean of its divisors is an integer number (496587).

Almost surely, 2^6939396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6939396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8938566).

6939396 is an abundant number, since it is smaller than the sum of its proper divisors (10937736).

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

6939396 is a wasteful number, since it uses less digits than its factorization.

6939396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700 (or 3695 counting only the distinct ones).

The product of its digits is 236196, while the sum is 45.

The square root of 6939396 is about 2634.2733343372. The cubic root of 6939396 is about 190.7394636744.

The spelling of 6939396 in words is "six million, nine hundred thirty-nine thousand, three hundred ninety-six".