8897997988 has 24 divisors (see below), whose sum is σ = 17020503360. Its totient is φ = 4036588320.

The previous prime is 8897997973. The next prime is 8897998003.

8897997988 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (8897997973) and next prime (8897998003).

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, 176256 + ... + 221047.

It is an arithmetic number, because the mean of its divisors is an integer number (709187640).

Almost surely, 2^8897997988 is an apocalyptic number.

It is an amenable number.

8897997988 is a deficient number, since it is larger than the sum of its proper divisors (8122505372).

8897997988 is a wasteful number, since it uses less digits than its factorization.

8897997988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397827 (or 397825 counting only the distinct ones).

The product of its digits is 1316818944, while the sum is 82.

The square root of 8897997988 is about 94329.2000814170. The cubic root of 8897997988 is about 2072.1956979508.

The spelling of 8897997988 in words is "eight billion, eight hundred ninety-seven million, nine hundred ninety-seven thousand, nine hundred eighty-eight".