7898223908 has 6 divisors (see below), whose sum is σ = 13821891846. Its totient is φ = 3949111952.

The previous prime is 7898223901. The next prime is 7898223917. The reversal of 7898223908 is 8093228987.

It can be written as a sum of positive squares in only one way, i.e., 5673403684 + 2224820224 = 75322^2 + 47168^2 .

It is not an unprimeable number, because it can be changed into a prime (7898223901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987277985 + ... + 987277992.

It is an arithmetic number, because the mean of its divisors is an integer number (2303648641).

Almost surely, 2^7898223908 is an apocalyptic number.

It is an amenable number.

7898223908 is a deficient number, since it is larger than the sum of its proper divisors (5923667938).

7898223908 is a wasteful number, since it uses less digits than its factorization.

7898223908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974555981 (or 1974555979 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 56.

The square root of 7898223908 is about 88871.9523134268. The cubic root of 7898223908 is about 1991.4824360471.

The spelling of 7898223908 in words is "seven billion, eight hundred ninety-eight million, two hundred twenty-three thousand, nine hundred eight".