6939387 has 48 divisors (see below), whose sum is σ = 12725440. Its totient is φ = 3545856.

The previous prime is 6939367. The next prime is 6939437. The reversal of 6939387 is 7839396.

It is a happy number.

It is not a de Polignac number, because 6939387 - 2¹⁴ = 6923003 is a prime.

It is a d-powerful number, because it can be written as 6 + 9² + 3¹⁰ + 9² + 3¹⁴ + 8⁷ + 7² .

It is not an unprimeable number, because it can be changed into a prime (6939337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30189 + ... + 30417.

Almost surely, 2^6939387 is an apocalyptic number.

6939387 is a deficient number, since it is larger than the sum of its proper divisors (5786053).

6939387 is a wasteful number, since it uses less digits than its factorization.

6939387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 289 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 6939387 is about 2634.2716260857. The cubic root of 6939387 is about 190.7393812150.

Subtracting 6939387 from its reverse (7839396), we obtain a palindrome (900009).

The spelling of 6939387 in words is "six million, nine hundred thirty-nine thousand, three hundred eighty-seven".