3902285 has 4 divisors (see below), whose sum is σ = 4682748. Its totient is φ = 3121824.

The previous prime is 3902263. The next prime is 3902291. The reversal of 3902285 is 5822093.

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 2036329 + 1865956 = 1427^2 + 1366^2 .

It is a cyclic number.

It is not a de Polignac number, because 3902285 - 2²⁰ = 2853709 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 390224 + ... + 390233.

It is an arithmetic number, because the mean of its divisors is an integer number (1170687).

Almost surely, 2^3902285 is an apocalyptic number.

It is an amenable number.

3902285 is a deficient number, since it is larger than the sum of its proper divisors (780463).

3902285 is an equidigital number, since it uses as much as digits as its factorization.

3902285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780462.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 3902285 is about 1975.4202084620. The cubic root of 3902285 is about 157.4368269365.

The spelling of 3902285 in words is "three million, nine hundred two thousand, two hundred eighty-five".