6408925 has 12 divisors (see below), whose sum is σ = 7984980. Its totient is φ = 5102720.

The previous prime is 6408923. The next prime is 6408929. The reversal of 6408925 is 5298046.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1196836 + 5212089 = 1094^2 + 2283^2 .

It is not a de Polignac number, because 6408925 - 2¹ = 6408923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6408923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6249 + ... + 7201.

It is an arithmetic number, because the mean of its divisors is an integer number (665415).

Almost surely, 2^6408925 is an apocalyptic number.

It is an amenable number.

6408925 is a deficient number, since it is larger than the sum of its proper divisors (1576055).

6408925 is a wasteful number, since it uses less digits than its factorization.

6408925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 6408925 is about 2531.5854715968. The cubic root of 6408925 is about 185.7498177998.

The spelling of 6408925 in words is "six million, four hundred eight thousand, nine hundred twenty-five".