3281385 has 16 divisors (see below), whose sum is σ = 5275584. Its totient is φ = 1741632.

The previous prime is 3281363. The next prime is 3281393. The reversal of 3281385 is 5831823.

It is a happy number.

It is not a de Polignac number, because 3281385 - 2¹¹ = 3279337 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3859 + ... + 4631.

It is an arithmetic number, because the mean of its divisors is an integer number (329724).

Almost surely, 2^3281385 is an apocalyptic number.

It is an amenable number.

3281385 is a deficient number, since it is larger than the sum of its proper divisors (1994199).

3281385 is a wasteful number, since it uses less digits than its factorization.

3281385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064.

The product of its digits is 5760, while the sum is 30.

The square root of 3281385 is about 1811.4593564306. The cubic root of 3281385 is about 148.6000867072.

The spelling of 3281385 in words is "three million, two hundred eighty-one thousand, three hundred eighty-five".