3898085 has 4 divisors (see below), whose sum is σ = 4677708. Its totient is φ = 3118464.

The previous prime is 3898073. The next prime is 3898087. The reversal of 3898085 is 5808983.

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

It can be written as a sum of positive squares in 2 ways, for example, as 519841 + 3378244 = 721^2 + 1838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3898085 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898087) 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, 389804 + ... + 389813.

It is an arithmetic number, because the mean of its divisors is an integer number (1169427).

Almost surely, 2^3898085 is an apocalyptic number.

It is an amenable number.

3898085 is a deficient number, since it is larger than the sum of its proper divisors (779623).

3898085 is an equidigital number, since it uses as much as digits as its factorization.

3898085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779622.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 3898085 is about 1974.3568573082. The cubic root of 3898085 is about 157.3803239695.

The spelling of 3898085 in words is "three million, eight hundred ninety-eight thousand, eighty-five".