6939425 has 6 divisors (see below), whose sum is σ = 8604918. Its totient is φ = 5551520.

The previous prime is 6939367. The next prime is 6939437. The reversal of 6939425 is 5249396.

It can be written as a sum of positive squares in 3 ways, for example, as 966289 + 5973136 = 983^2 + 2444^2 .

It is not a de Polignac number, because 6939425 - 2¹² = 6935329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 138764 + ... + 138813.

It is an arithmetic number, because the mean of its divisors is an integer number (1434153).

Almost surely, 2^6939425 is an apocalyptic number.

It is an amenable number.

6939425 is a deficient number, since it is larger than the sum of its proper divisors (1665493).

6939425 is a wasteful number, since it uses less digits than its factorization.

6939425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277587 (or 277582 counting only the distinct ones).

The product of its digits is 58320, while the sum is 38.

The square root of 6939425 is about 2634.2788386957. The cubic root of 6939425 is about 190.7397293765.

The spelling of 6939425 in words is "six million, nine hundred thirty-nine thousand, four hundred twenty-five".