3961679 has 4 divisors (see below), whose sum is σ = 3966000. Its totient is φ = 3957360.

The previous prime is 3961669. The next prime is 3961691. The reversal of 3961679 is 9761693.

It is a happy number.

3961679 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3961679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179 + ... + 2820.

It is an arithmetic number, because the mean of its divisors is an integer number (991500).

Almost surely, 2^3961679 is an apocalyptic number.

3961679 is a deficient number, since it is larger than the sum of its proper divisors (4321).

3961679 is a wasteful number, since it uses less digits than its factorization.

3961679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4320.

The product of its digits is 61236, while the sum is 41.

The square root of 3961679 is about 1990.3966941291. The cubic root of 3961679 is about 158.2315544106.

The spelling of 3961679 in words is "three million, nine hundred sixty-one thousand, six hundred seventy-nine".