3992443 has 16 divisors (see below), whose sum is σ = 4989376. Its totient is φ = 3110400.

The previous prime is 3992441. The next prime is 3992447. The reversal of 3992443 is 3442993.

It is a cyclic number.

It is not a de Polignac number, because 3992443 - 2¹ = 3992441 is a prime.

It is a super-2 number, since 2×3992443² = 31879202216498, which contains 22 as substring.

3992443 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3992399 and 3992408.

It is not an unprimeable number, because it can be changed into a prime (3992441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6343 + ... + 6943.

It is an arithmetic number, because the mean of its divisors is an integer number (311836).

Almost surely, 2^3992443 is an apocalyptic number.

3992443 is a deficient number, since it is larger than the sum of its proper divisors (996933).

3992443 is a wasteful number, since it uses less digits than its factorization.

3992443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694.

The product of its digits is 23328, while the sum is 34.

The square root of 3992443 is about 1998.1098568397. The cubic root of 3992443 is about 158.6400755955.

The spelling of 3992443 in words is "three million, nine hundred ninety-two thousand, four hundred forty-three".