7973907982 has 16 divisors (see below), whose sum is σ = 12189754800. Its totient is φ = 3910696192.

The previous prime is 7973907961. The next prime is 7973908013. The reversal of 7973907982 is 2897093797.

It is a self number, because there is not a number n which added to its sum of digits gives 7973907982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533118 + ... + 547870.

It is an arithmetic number, because the mean of its divisors is an integer number (761859675).

Almost surely, 2^7973907982 is an apocalyptic number.

7973907982 is a deficient number, since it is larger than the sum of its proper divisors (4215846818).

7973907982 is a wasteful number, since it uses less digits than its factorization.

7973907982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19907.

The product of its (nonzero) digits is 12002256, while the sum is 61.

The square root of 7973907982 is about 89296.7411611420. The cubic root of 7973907982 is about 1997.8232970082.

The spelling of 7973907982 in words is "seven billion, nine hundred seventy-three million, nine hundred seven thousand, nine hundred eighty-two".