3969904 has 10 divisors (see below), whose sum is σ = 7691720. Its totient is φ = 1984944.

The previous prime is 3969899. The next prime is 3969923. The reversal of 3969904 is 4099693.

3969904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 124044 + ... + 124075.

It is an arithmetic number, because the mean of its divisors is an integer number (769172).

Almost surely, 2^3969904 is an apocalyptic number.

It is an amenable number.

3969904 is a deficient number, since it is larger than the sum of its proper divisors (3721816).

3969904 is a wasteful number, since it uses less digits than its factorization.

3969904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248127 (or 248121 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 3969904 is about 1992.4617938621. The cubic root of 3969904 is about 158.3409823328.

The spelling of 3969904 in words is "three million, nine hundred sixty-nine thousand, nine hundred four".