3943992 has 32 divisors (see below), whose sum is σ = 10619280. Its totient is φ = 1213440.

The previous prime is 3943967. The next prime is 3943993. The reversal of 3943992 is 2993493.

3943992 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 (39).

It is a self number, because there is not a number n which added to its sum of digits gives 3943992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3943993) 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 7 ways as a sum of consecutive naturals, for example, 6009 + ... + 6632.

Almost surely, 2^3943992 is an apocalyptic number.

It is an amenable number.

3943992 is an abundant number, since it is smaller than the sum of its proper divisors (6675288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3943992 is a wasteful number, since it uses less digits than its factorization.

3943992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12663 (or 12659 counting only the distinct ones).

The product of its digits is 52488, while the sum is 39.

The square root of 3943992 is about 1985.9486398193. The cubic root of 3943992 is about 157.9957270649.

The spelling of 3943992 in words is "three million, nine hundred forty-three thousand, nine hundred ninety-two".