7997982 has 8 divisors (see below), whose sum is σ = 15995976. Its totient is φ = 2665992.

The previous prime is 7997971. The next prime is 7997989. The reversal of 7997982 is 2897997.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

7997982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7997989) 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 3 ways as a sum of consecutive naturals, for example, 666493 + ... + 666504.

It is an arithmetic number, because the mean of its divisors is an integer number (1999497).

Almost surely, 2^7997982 is an apocalyptic number.

7997982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7997982 is a wasteful number, since it uses less digits than its factorization.

7997982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333002.

The product of its digits is 571536, while the sum is 51.

The square root of 7997982 is about 2828.0703668756. The cubic root of 7997982 is about 199.9831819191.

The spelling of 7997982 in words is "seven million, nine hundred ninety-seven thousand, nine hundred eighty-two".