7998085582 has 4 divisors (see below), whose sum is σ = 11997128376. Its totient is φ = 3999042790.

The previous prime is 7998085519. The next prime is 7998085597. The reversal of 7998085582 is 2855808997.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7998085582.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1999521394 + ... + 1999521397.

It is an arithmetic number, because the mean of its divisors is an integer number (2999282094).

Almost surely, 2^7998085582 is an apocalyptic number.

7998085582 is a deficient number, since it is larger than the sum of its proper divisors (3999042794).

7998085582 is a wasteful number, since it uses less digits than its factorization.

7998085582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3999042793.

The product of its (nonzero) digits is 14515200, while the sum is 61.

The square root of 7998085582 is about 89432.0165377031. The cubic root of 7998085582 is about 1999.8404524393.

The spelling of 7998085582 in words is "seven billion, nine hundred ninety-eight million, eighty-five thousand, five hundred eighty-two".