4085899 has 4 divisors (see below), whose sum is σ = 4326264. Its totient is φ = 3845536.

The previous prime is 4085891. The next prime is 4085923. The reversal of 4085899 is 9985804.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4085899 - 2³ = 4085891 is a prime.

It is a Duffinian number.

4085899 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4085891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120157 + ... + 120190.

It is an arithmetic number, because the mean of its divisors is an integer number (1081566).

Almost surely, 2^4085899 is an apocalyptic number.

4085899 is a deficient number, since it is larger than the sum of its proper divisors (240365).

4085899 is a wasteful number, since it uses less digits than its factorization.

4085899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240364.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 4085899 is about 2021.3606803339. The cubic root of 4085899 is about 159.8683682990.

The spelling of 4085899 in words is "four million, eighty-five thousand, eight hundred ninety-nine".