8409425 has 12 divisors (see below), whose sum is σ = 10475520. Its totient is φ = 6696720.

The previous prime is 8409413. The next prime is 8409433. The reversal of 8409425 is 5249048.

8409425 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8409425 - 2⁴ = 8409409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8409391 and 8409400.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5936 + ... + 7214.

It is an arithmetic number, because the mean of its divisors is an integer number (872960).

Almost surely, 2^8409425 is an apocalyptic number.

It is an amenable number.

8409425 is a deficient number, since it is larger than the sum of its proper divisors (2066095).

8409425 is a wasteful number, since it uses less digits than its factorization.

8409425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 8409425 is about 2899.9008603744. The cubic root of 8409425 is about 203.3552710064.

The spelling of 8409425 in words is "eight million, four hundred nine thousand, four hundred twenty-five".