3613971 has 24 divisors (see below), whose sum is σ = 5266944. Its totient is φ = 2202480.

The previous prime is 3613963. The next prime is 3613991. The reversal of 3613971 is 1793163.

3613971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3613971 - 2³ = 3613963 is a prime.

3613971 is a modest number, since divided by 3971 gives 361 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3613931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50866 + ... + 50936.

It is an arithmetic number, because the mean of its divisors is an integer number (219456).

Almost surely, 2^3613971 is an apocalyptic number.

3613971 is a deficient number, since it is larger than the sum of its proper divisors (1652973).

3613971 is a wasteful number, since it uses less digits than its factorization.

3613971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 140 counting only the distinct ones).

The product of its digits is 3402, while the sum is 30.

The square root of 3613971 is about 1901.0447127829. The cubic root of 3613971 is about 153.4598918365.

The spelling of 3613971 in words is "three million, six hundred thirteen thousand, nine hundred seventy-one".