6425660 has 24 divisors (see below), whose sum is σ = 14288400. Its totient is φ = 2418944.

The previous prime is 6425651. The next prime is 6425663. The reversal of 6425660 is 665246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6425663) 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, 9110 + ... + 9789.

It is an arithmetic number, because the mean of its divisors is an integer number (595350).

Almost surely, 2^6425660 is an apocalyptic number.

It is an amenable number.

6425660 is an abundant number, since it is smaller than the sum of its proper divisors (7862740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6425660 is a wasteful number, since it uses less digits than its factorization.

6425660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18925 (or 18923 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 6425660 is about 2534.8885577082. Note that the first 3 decimals coincide. The cubic root of 6425660 is about 185.9113540667.

The spelling of 6425660 in words is "six million, four hundred twenty-five thousand, six hundred sixty".