2397982 has 4 divisors (see below), whose sum is σ = 3596976. Its totient is φ = 1198990.

The previous prime is 2397961. The next prime is 2397991. The reversal of 2397982 is 2897932.

2397982 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 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 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, 599494 + ... + 599497.

It is an arithmetic number, because the mean of its divisors is an integer number (899244).

2^2397982 is an apocalyptic number.

2397982 is a deficient number, since it is larger than the sum of its proper divisors (1198994).

2397982 is a wasteful number, since it uses less digits than its factorization.

2397982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198993.

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

The square root of 2397982 is about 1548.5418948159. The cubic root of 2397982 is about 133.8490540580.

The spelling of 2397982 in words is "two million, three hundred ninety-seven thousand, nine hundred eighty-two".