3961671 has 16 divisors (see below), whose sum is σ = 6355200. Its totient is φ = 2144448.

The previous prime is 3961669. The next prime is 3961691. The reversal of 3961671 is 1761693.

It is not a de Polignac number, because 3961671 - 2¹ = 3961669 is a prime.

It is a super-3 number, since 3×3961671³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4566 + ... + 5363.

It is an arithmetic number, because the mean of its divisors is an integer number (397200).

Almost surely, 2^3961671 is an apocalyptic number.

3961671 is a deficient number, since it is larger than the sum of its proper divisors (2393529).

3961671 is a wasteful number, since it uses less digits than its factorization.

3961671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9958.

The product of its digits is 6804, while the sum is 33.

The square root of 3961671 is about 1990.3946844784. The cubic root of 3961671 is about 158.2314479024.

The spelling of 3961671 in words is "three million, nine hundred sixty-one thousand, six hundred seventy-one".