6939423 has 6 divisors (see below), whose sum is σ = 10023624. Its totient is φ = 4626276.

The previous prime is 6939367. The next prime is 6939437. The reversal of 6939423 is 3249396.

It is a happy number.

It is not a de Polignac number, because 6939423 - 2¹⁴ = 6923039 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6939473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 385515 + ... + 385532.

It is an arithmetic number, because the mean of its divisors is an integer number (1670604).

Almost surely, 2^6939423 is an apocalyptic number.

6939423 is a deficient number, since it is larger than the sum of its proper divisors (3084201).

6939423 is a wasteful number, since it uses less digits than its factorization.

6939423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771053 (or 771050 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 6939423 is about 2634.2784590851. The cubic root of 6939423 is about 190.7397110523.

The spelling of 6939423 in words is "six million, nine hundred thirty-nine thousand, four hundred twenty-three".