6939944 has 32 divisors (see below), whose sum is σ = 15033600. Its totient is φ = 2968320.

The previous prime is 6939943. The next prime is 6939967. The reversal of 6939944 is 4499396.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a d-powerful number, because it can be written as 6² + 9 + 3¹⁴ + 9³ + 9⁵ + 4¹⁰ + 4¹⁰ .

It is a junction number, because it is equal to n+sod(n) for n = 6939895 and 6939904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6939941) 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 in 7 ways as a sum of consecutive naturals, for example, 824 + ... + 3815.

It is an arithmetic number, because the mean of its divisors is an integer number (469800).

Almost surely, 2^6939944 is an apocalyptic number.

It is an amenable number.

6939944 is an abundant number, since it is smaller than the sum of its proper divisors (8093656).

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

6939944 is a wasteful number, since it uses less digits than its factorization.

6939944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4673 (or 4669 counting only the distinct ones).

The product of its digits is 209952, while the sum is 44.

The square root of 6939944 is about 2634.3773457878. The cubic root of 6939944 is about 190.7444844031.

The spelling of 6939944 in words is "six million, nine hundred thirty-nine thousand, nine hundred forty-four".