3961839169 has 8 divisors (see below), whose sum is σ = 4176476640. Its totient is φ = 3747813696.

The previous prime is 3961839149. The next prime is 3961839181. The reversal of 3961839169 is 9619381693.

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

It is a cyclic number.

It is not a de Polignac number, because 3961839169 - 2¹⁷ = 3961708097 is a prime.

It is a super-2 number, since 2×3961839169² = 31392339202045221122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3961839139) 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, 139672 + ... + 165625.

It is an arithmetic number, because the mean of its divisors is an integer number (522059580).

Almost surely, 2^3961839169 is an apocalyptic number.

It is an amenable number.

3961839169 is a deficient number, since it is larger than the sum of its proper divisors (214637471).

3961839169 is a wasteful number, since it uses less digits than its factorization.

3961839169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305999.

The product of its digits is 1889568, while the sum is 55.

The square root of 3961839169 is about 62943.1423508550. The cubic root of 3961839169 is about 1582.3368679335.

It can be divided in two parts, 39618 and 39169, that added together give a palindrome (78787).

The spelling of 3961839169 in words is "three billion, nine hundred sixty-one million, eight hundred thirty-nine thousand, one hundred sixty-nine".