3855345 has 32 divisors (see below), whose sum is σ = 7039872. Its totient is φ = 1784832.

The previous prime is 3855331. The next prime is 3855359. The reversal of 3855345 is 5435583.

It is an interprime number because it is at equal distance from previous prime (3855331) and next prime (3855359).

It is not a de Polignac number, because 3855345 - 2⁷ = 3855217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2734 + ... + 3896.

It is an arithmetic number, because the mean of its divisors is an integer number (219996).

Almost surely, 2^3855345 is an apocalyptic number.

It is an amenable number.

3855345 is a deficient number, since it is larger than the sum of its proper divisors (3184527).

3855345 is a wasteful number, since it uses less digits than its factorization.

3855345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201.

The product of its digits is 36000, while the sum is 33.

The square root of 3855345 is about 1963.5032467506. The cubic root of 3855345 is about 156.8030174563.

The spelling of 3855345 in words is "three million, eight hundred fifty-five thousand, three hundred forty-five".