3969892 has 12 divisors (see below), whose sum is σ = 7249536. Its totient is φ = 1898600.

The previous prime is 3969871. The next prime is 3969899. The reversal of 3969892 is 2989693.

It is a happy number.

3969892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3969899) 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 in 3 ways as a sum of consecutive naturals, for example, 21484 + ... + 21667.

It is an arithmetic number, because the mean of its divisors is an integer number (604128).

Almost surely, 2^3969892 is an apocalyptic number.

It is an amenable number.

3969892 is a deficient number, since it is larger than the sum of its proper divisors (3279644).

3969892 is a wasteful number, since it uses less digits than its factorization.

3969892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43178 (or 43176 counting only the distinct ones).

The product of its digits is 209952, while the sum is 46.

The square root of 3969892 is about 1992.4587825097. The cubic root of 3969892 is about 158.3408227913.

The spelling of 3969892 in words is "three million, nine hundred sixty-nine thousand, eight hundred ninety-two".