2791982 has 4 divisors (see below), whose sum is σ = 4187976. Its totient is φ = 1395990.

The previous prime is 2791981. The next prime is 2791991. The reversal of 2791982 is 2891972.

2791982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2791981) 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 as a sum of consecutive naturals, namely, 697994 + ... + 697997.

It is an arithmetic number, because the mean of its divisors is an integer number (1046994).

2^2791982 is an apocalyptic number.

2791982 is a deficient number, since it is larger than the sum of its proper divisors (1395994).

2791982 is a wasteful number, since it uses less digits than its factorization.

2791982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395993.

The product of its digits is 18144, while the sum is 38.

The square root of 2791982 is about 1670.9224996989. The cubic root of 2791982 is about 140.8113097299.

It can be divided in two parts, 2791 and 982, that added together give a palindrome (3773).

The spelling of 2791982 in words is "two million, seven hundred ninety-one thousand, nine hundred eighty-two".