4089965 has 8 divisors (see below), whose sum is σ = 5354208. Its totient is φ = 2974480.

The previous prime is 4089949. The next prime is 4089973. The reversal of 4089965 is 5699804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4089965 - 2⁴ = 4089949 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37127 + ... + 37236.

It is an arithmetic number, because the mean of its divisors is an integer number (669276).

Almost surely, 2^4089965 is an apocalyptic number.

It is an amenable number.

4089965 is a deficient number, since it is larger than the sum of its proper divisors (1264243).

4089965 is a wasteful number, since it uses less digits than its factorization.

4089965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74379.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 4089965 is about 2022.3661884041. The cubic root of 4089965 is about 159.9213806459.

The spelling of 4089965 in words is "four million, eighty-nine thousand, nine hundred sixty-five".