7981982 has 8 divisors (see below), whose sum is σ = 11987976. Its totient is φ = 3985992.

The previous prime is 7981949. The next prime is 7981999. The reversal of 7981982 is 2891897.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8 + ... + 3995.

It is an arithmetic number, because the mean of its divisors is an integer number (1498497).

Almost surely, 2^7981982 is an apocalyptic number.

7981982 is a deficient number, since it is larger than the sum of its proper divisors (4005994).

7981982 is a wasteful number, since it uses less digits than its factorization.

7981982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002.

The product of its digits is 72576, while the sum is 44.

The square root of 7981982 is about 2825.2401667823. The cubic root of 7981982 is about 199.8497371336.

The spelling of 7981982 in words is "seven million, nine hundred eighty-one thousand, nine hundred eighty-two".