4085831 has 8 divisors (see below), whose sum is σ = 4466304. Its totient is φ = 3720960.

The previous prime is 4085827. The next prime is 4085849. The reversal of 4085831 is 1385804.

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

It is not a de Polignac number, because 4085831 - 2² = 4085827 is a prime.

It is a super-2 number, since 2×4085831² = 33388029921122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4085794 and 4085803.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 3350 + ... + 4403.

It is an arithmetic number, because the mean of its divisors is an integer number (558288).

Almost surely, 2^4085831 is an apocalyptic number.

4085831 is a deficient number, since it is larger than the sum of its proper divisors (380473).

4085831 is a wasteful number, since it uses less digits than its factorization.

4085831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 4085831 is about 2021.3438599110. The cubic root of 4085831 is about 159.8674814188.

The spelling of 4085831 in words is "four million, eighty-five thousand, eight hundred thirty-one".