6939447 has 8 divisors (see below), whose sum is σ = 9283056. Its totient is φ = 4611072.

The previous prime is 6939437. The next prime is 6939467. The reversal of 6939447 is 7449396.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6939447 - 2¹⁰ = 6938423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6939399 and 6939408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6939437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2698 + ... + 4599.

It is an arithmetic number, because the mean of its divisors is an integer number (1160382).

Almost surely, 2^6939447 is an apocalyptic number.

6939447 is a deficient number, since it is larger than the sum of its proper divisors (2343609).

6939447 is a wasteful number, since it uses less digits than its factorization.

6939447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7617.

The product of its digits is 163296, while the sum is 42.

The square root of 6939447 is about 2634.2830144083. The cubic root of 6939447 is about 190.7399309431.

It can be divided in two parts, 693 and 9447, that multiplied together give a triangular number (6546771 = T₃₆₁₈).

The spelling of 6939447 in words is "six million, nine hundred thirty-nine thousand, four hundred forty-seven".