3890185 has 16 divisors (see below), whose sum is σ = 5087376. Its totient is φ = 2838528.

The previous prime is 3890179. The next prime is 3890189. The reversal of 3890185 is 5810983.

3890185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1236544 + 2653641 = 1112^2 + 1629^2 .

It is a cyclic number.

It is not a de Polignac number, because 3890185 - 2⁷ = 3890057 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3890185.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5997 + ... + 6613.

It is an arithmetic number, because the mean of its divisors is an integer number (317961).

Almost surely, 2^3890185 is an apocalyptic number.

It is an amenable number.

3890185 is a deficient number, since it is larger than the sum of its proper divisors (1197191).

3890185 is a wasteful number, since it uses less digits than its factorization.

3890185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 3890185 is about 1972.3551911357. The cubic root of 3890185 is about 157.2739345146.

The spelling of 3890185 in words is "three million, eight hundred ninety thousand, one hundred eighty-five".