7917982 has 8 divisors (see below), whose sum is σ = 11904336. Its totient is φ = 3949872.

The previous prime is 7917967. The next prime is 7917997. The reversal of 7917982 is 2897197.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7917967) and next prime (7917997).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3418 + ... + 5245.

It is an arithmetic number, because the mean of its divisors is an integer number (1488042).

Almost surely, 2^7917982 is an apocalyptic number.

7917982 is a deficient number, since it is larger than the sum of its proper divisors (3986354).

7917982 is a wasteful number, since it uses less digits than its factorization.

7917982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9122.

The product of its digits is 63504, while the sum is 43.

The square root of 7917982 is about 2813.8909005148. The cubic root of 7917982 is about 199.3141675240.

The spelling of 7917982 in words is "seven million, nine hundred seventeen thousand, nine hundred eighty-two".