3992782 has 4 divisors (see below), whose sum is σ = 5989176. Its totient is φ = 1996390.

The previous prime is 3992771. The next prime is 3992797. The reversal of 3992782 is 2872993.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998194 + ... + 998197.

It is an arithmetic number, because the mean of its divisors is an integer number (1497294).

Almost surely, 2^3992782 is an apocalyptic number.

3992782 is a deficient number, since it is larger than the sum of its proper divisors (1996394).

3992782 is a wasteful number, since it uses less digits than its factorization.

3992782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996393.

The product of its digits is 54432, while the sum is 40.

The square root of 3992782 is about 1998.1946852096. The cubic root of 3992782 is about 158.6445655334.

It can be divided in two parts, 3992 and 782, that added together give a palindrome (4774).

The spelling of 3992782 in words is "three million, nine hundred ninety-two thousand, seven hundred eighty-two".