3885309 has 12 divisors (see below), whose sum is σ = 5630716. Its totient is φ = 2581632.

The previous prime is 3885293. The next prime is 3885319. The reversal of 3885309 is 9035883.

It can be written as a sum of positive squares in 2 ways, for example, as 1863225 + 2022084 = 1365^2 + 1422^2 .

It is not a de Polignac number, because 3885309 - 2⁴ = 3885293 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 (3885319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3399 + ... + 4395.

Almost surely, 2^3885309 is an apocalyptic number.

It is an amenable number.

3885309 is a deficient number, since it is larger than the sum of its proper divisors (1745407).

3885309 is a wasteful number, since it uses less digits than its factorization.

3885309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 3885309 is about 1971.1187178859. The cubic root of 3885309 is about 157.2081974242.

The spelling of 3885309 in words is "three million, eight hundred eighty-five thousand, three hundred nine".