4089825 has 48 divisors (see below), whose sum is σ = 7707840. Its totient is φ = 2125440.

The previous prime is 4089823. The next prime is 4089829. The reversal of 4089825 is 5289804.

It is not a de Polignac number, because 4089825 - 2¹ = 4089823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4089825.

It is not an unprimeable number, because it can be changed into a prime (4089823) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49234 + ... + 49316.

It is an arithmetic number, because the mean of its divisors is an integer number (160580).

Almost surely, 2^4089825 is an apocalyptic number.

4089825 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4089825 is a deficient number, since it is larger than the sum of its proper divisors (3618015).

4089825 is a wasteful number, since it uses less digits than its factorization.

4089825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 4089825 is about 2022.3315751874. The cubic root of 4089825 is about 159.9195559156.

The spelling of 4089825 in words is "four million, eighty-nine thousand, eight hundred twenty-five".