3995613 has 12 divisors (see below), whose sum is σ = 5825820. Its totient is φ = 2638656.

The previous prime is 3995609. The next prime is 3995623. The reversal of 3995613 is 3165993.

3995613 is a `hidden beast` number, since 3 + 99 + 561 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1505529 + 2490084 = 1227^2 + 1578^2 .

It is not a de Polignac number, because 3995613 - 2² = 3995609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3995623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1056 + ... + 3017.

It is an arithmetic number, because the mean of its divisors is an integer number (485485).

Almost surely, 2^3995613 is an apocalyptic number.

It is an amenable number.

3995613 is a deficient number, since it is larger than the sum of its proper divisors (1830207).

3995613 is a wasteful number, since it uses less digits than its factorization.

3995613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188 (or 4185 counting only the distinct ones).

The product of its digits is 21870, while the sum is 36.

The square root of 3995613 is about 1998.9029491198. The cubic root of 3995613 is about 158.6820512313.

The spelling of 3995613 in words is "three million, nine hundred ninety-five thousand, six hundred thirteen".