3878285 has 8 divisors (see below), whose sum is σ = 4675320. Its totient is φ = 3088384.

The previous prime is 3878279. The next prime is 3878291. The reversal of 3878285 is 5828783.

It is an interprime number because it is at equal distance from previous prime (3878279) and next prime (3878291).

It can be written as a sum of positive squares in 4 ways, for example, as 44521 + 3833764 = 211^2 + 1958^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3878285 - 2⁴ = 3878269 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500 + ... + 2829.

It is an arithmetic number, because the mean of its divisors is an integer number (584415).

Almost surely, 2^3878285 is an apocalyptic number.

It is an amenable number.

3878285 is a deficient number, since it is larger than the sum of its proper divisors (797035).

3878285 is a wasteful number, since it uses less digits than its factorization.

3878285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567.

The product of its digits is 107520, while the sum is 41.

The square root of 3878285 is about 1969.3361825752. The cubic root of 3878285 is about 157.1134047518.

The spelling of 3878285 in words is "three million, eight hundred seventy-eight thousand, two hundred eighty-five".