3971611 has 8 divisors (see below), whose sum is σ = 4580064. Its totient is φ = 3373440.

The previous prime is 3971599. The next prime is 3971621. The reversal of 3971611 is 1161793.

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

It is not a de Polignac number, because 3971611 - 2⁷ = 3971483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3971611.

It is not an unprimeable number, because it can be changed into a prime (3971621) 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, 1720 + ... + 3301.

It is an arithmetic number, because the mean of its divisors is an integer number (572508).

Almost surely, 2^3971611 is an apocalyptic number.

3971611 is a deficient number, since it is larger than the sum of its proper divisors (608453).

3971611 is a wasteful number, since it uses less digits than its factorization.

3971611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141.

The product of its digits is 1134, while the sum is 28.

The square root of 3971611 is about 1992.8901123745. The cubic root of 3971611 is about 158.3636738409.

The spelling of 3971611 in words is "three million, nine hundred seventy-one thousand, six hundred eleven".