7998008996 has 6 divisors (see below), whose sum is σ = 13996515750. Its totient is φ = 3999004496.

The previous prime is 7998008981. The next prime is 7998009001. The reversal of 7998008996 is 6998008997.

It can be written as a sum of positive squares in only one way, i.e., 7167992896 + 830016100 = 84664^2 + 28810^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 999751121 + ... + 999751128.

It is an arithmetic number, because the mean of its divisors is an integer number (2332752625).

Almost surely, 2^7998008996 is an apocalyptic number.

It is an amenable number.

7998008996 is a deficient number, since it is larger than the sum of its proper divisors (5998506754).

7998008996 is a wasteful number, since it uses less digits than its factorization.

7998008996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999502253 (or 1999502251 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 65.

The square root of 7998008996 is about 89431.5883566875. The cubic root of 7998008996 is about 1999.8340692339.

Subtracting from 7998008996 its reverse (6998008997), we obtain a palindrome (999999999).

The spelling of 7998008996 in words is "seven billion, nine hundred ninety-eight million, eight thousand, nine hundred ninety-six".