3959684 has 6 divisors (see below), whose sum is σ = 6929454. Its totient is φ = 1979840.

The previous prime is 3959677. The next prime is 3959687. The reversal of 3959684 is 4869593.

3959684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3319684 + 640000 = 1822^2 + 800^2 .

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (3959687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494957 + ... + 494964.

It is an arithmetic number, because the mean of its divisors is an integer number (1154909).

Almost surely, 2^3959684 is an apocalyptic number.

It is an amenable number.

3959684 is a deficient number, since it is larger than the sum of its proper divisors (2969770).

3959684 is a wasteful number, since it uses less digits than its factorization.

3959684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989925 (or 989923 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 3959684 is about 1989.8954746418. The cubic root of 3959684 is about 158.2049894992.

Subtracting 3959684 from its reverse (4869593), we obtain a palindrome (909909).

The spelling of 3959684 in words is "three million, nine hundred fifty-nine thousand, six hundred eighty-four".