6425668 has 12 divisors (see below), whose sum is σ = 11361532. Its totient is φ = 3179520.

The previous prime is 6425663. The next prime is 6425687. The reversal of 6425668 is 8665246.

It can be written as a sum of positive squares in 2 ways, for example, as 1327104 + 5098564 = 1152^2 + 2258^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6425663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7893 + ... + 8668.

Almost surely, 2^6425668 is an apocalyptic number.

It is an amenable number.

6425668 is a deficient number, since it is larger than the sum of its proper divisors (4935864).

6425668 is a wasteful number, since it uses less digits than its factorization.

6425668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16662 (or 16660 counting only the distinct ones).

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

The square root of 6425668 is about 2534.8901356864. The cubic root of 6425668 is about 185.9114312204.

The spelling of 6425668 in words is "six million, four hundred twenty-five thousand, six hundred sixty-eight".