3971589 has 8 divisors (see below), whose sum is σ = 5574240. Its totient is φ = 2508336.

The previous prime is 3971587. The next prime is 3971599. The reversal of 3971589 is 9851793.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3971589 - 2¹ = 3971587 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3971589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34782 + ... + 34895.

It is an arithmetic number, because the mean of its divisors is an integer number (696780).

Almost surely, 2^3971589 is an apocalyptic number.

It is an amenable number.

3971589 is a deficient number, since it is larger than the sum of its proper divisors (1602651).

3971589 is a wasteful number, since it uses less digits than its factorization.

3971589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69699.

The product of its digits is 68040, while the sum is 42.

The square root of 3971589 is about 1992.8845927449. The cubic root of 3971589 is about 158.3633814317.

It can be divided in two parts, 3971 and 589, that added together give a triangular number (4560 = T₉₅).

The spelling of 3971589 in words is "three million, nine hundred seventy-one thousand, five hundred eighty-nine".