3901585 has 16 divisors (see below), whose sum is σ = 5003856. Its totient is φ = 2910208.

The previous prime is 3901571. The next prime is 3901589. The reversal of 3901585 is 5851093.

It can be written as a sum of positive squares in 8 ways, for example, as 219024 + 3682561 = 468^2 + 1919^2 .

It is a cyclic number.

It is not a de Polignac number, because 3901585 - 2⁵ = 3901553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3901589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16629 + ... + 16861.

It is an arithmetic number, because the mean of its divisors is an integer number (312741).

Almost surely, 2^3901585 is an apocalyptic number.

It is an amenable number.

3901585 is a deficient number, since it is larger than the sum of its proper divisors (1102271).

3901585 is a wasteful number, since it uses less digits than its factorization.

3901585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 3901585 is about 1975.2430230227. The cubic root of 3901585 is about 157.4274125917.

The spelling of 3901585 in words is "three million, nine hundred one thousand, five hundred eighty-five".