3969916 has 12 divisors (see below), whose sum is σ = 7009632. Its totient is φ = 1967168.

The previous prime is 3969899. The next prime is 3969923. The reversal of 3969916 is 6199693.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3940 + ... + 4843.

It is an arithmetic number, because the mean of its divisors is an integer number (584136).

Almost surely, 2^3969916 is an apocalyptic number.

It is an amenable number.

3969916 is a deficient number, since it is larger than the sum of its proper divisors (3039716).

3969916 is a wasteful number, since it uses less digits than its factorization.

3969916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8900 (or 8898 counting only the distinct ones).

The product of its digits is 78732, while the sum is 43.

The square root of 3969916 is about 1992.4648052099. The cubic root of 3969916 is about 158.3411418741.

The spelling of 3969916 in words is "three million, nine hundred sixty-nine thousand, nine hundred sixteen".