4089165 has 16 divisors (see below), whose sum is σ = 6595776. Its totient is φ = 2163200.

The previous prime is 4089157. The next prime is 4089167. The reversal of 4089165 is 5619804.

It is not a de Polignac number, because 4089165 - 2³ = 4089157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4089167) 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 15 ways as a sum of consecutive naturals, for example, 925 + ... + 3005.

It is an arithmetic number, because the mean of its divisors is an integer number (412236).

Almost surely, 2^4089165 is an apocalyptic number.

It is an amenable number.

4089165 is a deficient number, since it is larger than the sum of its proper divisors (2506611).

4089165 is a wasteful number, since it uses less digits than its factorization.

4089165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 4089165 is about 2022.1683906144. The cubic root of 4089165 is about 159.9109530549.

The spelling of 4089165 in words is "four million, eighty-nine thousand, one hundred sixty-five".