6425686 has 8 divisors (see below), whose sum is σ = 10145880. Its totient is φ = 3043728.

The previous prime is 6425663. The next prime is 6425687. The reversal of 6425686 is 6865246.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6425687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84511 + ... + 84586.

It is an arithmetic number, because the mean of its divisors is an integer number (1268235).

Almost surely, 2^6425686 is an apocalyptic number.

6425686 is a deficient number, since it is larger than the sum of its proper divisors (3720194).

6425686 is a wasteful number, since it uses less digits than its factorization.

6425686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169118.

The product of its digits is 69120, while the sum is 37.

The square root of 6425686 is about 2534.8936861336. The cubic root of 6425686 is about 185.9116048160.

It can be divided in two parts, 642 and 5686, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 6425686 in words is "six million, four hundred twenty-five thousand, six hundred eighty-six".