3851085 has 16 divisors (see below), whose sum is σ = 7042176. Its totient is φ = 1760448.

The previous prime is 3851083. The next prime is 3851087. The reversal of 3851085 is 5801583.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3851083) and next prime (3851087).

It is not a de Polignac number, because 3851085 - 2¹ = 3851083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3851083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18234 + ... + 18443.

It is an arithmetic number, because the mean of its divisors is an integer number (440136).

Almost surely, 2^3851085 is an apocalyptic number.

3851085 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3851085 is a deficient number, since it is larger than the sum of its proper divisors (3191091).

3851085 is a wasteful number, since it uses less digits than its factorization.

3851085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36692.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 3851085 is about 1962.4181511594. The cubic root of 3851085 is about 156.7452425113.

The spelling of 3851085 in words is "three million, eight hundred fifty-one thousand, eighty-five".