4085919 has 6 divisors (see below), whose sum is σ = 5901896. Its totient is φ = 2723940.

The previous prime is 4085891. The next prime is 4085923. The reversal of 4085919 is 9195804.

It is not a de Polignac number, because 4085919 - 2⁷ = 4085791 is a prime.

It is a super-2 number, since 2×4085919² = 33389468149122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4085119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 226987 + ... + 227004.

Almost surely, 2^4085919 is an apocalyptic number.

4085919 is a deficient number, since it is larger than the sum of its proper divisors (1815977).

4085919 is a wasteful number, since it uses less digits than its factorization.

4085919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453997 (or 453994 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 4085919 is about 2021.3656274905. The cubic root of 4085919 is about 159.8686291443.

The spelling of 4085919 in words is "four million, eighty-five thousand, nine hundred nineteen".