8403925 has 6 divisors (see below), whose sum is σ = 10420898. Its totient is φ = 6723120.

The previous prime is 8403917. The next prime is 8403931. The reversal of 8403925 is 5293048.

8403925 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 956484 + 7447441 = 978^2 + 2729^2 .

It is not a de Polignac number, because 8403925 - 2³ = 8403917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168054 + ... + 168103.

Almost surely, 2^8403925 is an apocalyptic number.

It is an amenable number.

8403925 is a deficient number, since it is larger than the sum of its proper divisors (2016973).

8403925 is a wasteful number, since it uses less digits than its factorization.

8403925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336167 (or 336162 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 8403925 is about 2898.9523969876. The cubic root of 8403925 is about 203.3109279860.

The spelling of 8403925 in words is "eight million, four hundred three thousand, nine hundred twenty-five".