6425939 has 8 divisors (see below), whose sum is σ = 7008960. Its totient is φ = 5855616.

The previous prime is 6425929. The next prime is 6425941. The reversal of 6425939 is 9395246.

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

It is not a de Polignac number, because 6425939 - 2¹² = 6421843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6425929) 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, 2102 + ... + 4155.

It is an arithmetic number, because the mean of its divisors is an integer number (876120).

Almost surely, 2^6425939 is an apocalyptic number.

6425939 is a deficient number, since it is larger than the sum of its proper divisors (583021).

6425939 is a wasteful number, since it uses less digits than its factorization.

6425939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6349.

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

The square root of 6425939 is about 2534.9435891159. The cubic root of 6425939 is about 185.9140447640.

The spelling of 6425939 in words is "six million, four hundred twenty-five thousand, nine hundred thirty-nine".