8890471988 has 12 divisors (see below), whose sum is σ = 15617484960. Its totient is φ = 4428333432.

The previous prime is 8890471981. The next prime is 8890472027. The reversal of 8890471988 is 8891740988.

It is a self number, because there is not a number n which added to its sum of digits gives 8890471988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8890471981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4224458 + ... + 4226561.

It is an arithmetic number, because the mean of its divisors is an integer number (1301457080).

Almost surely, 2^8890471988 is an apocalyptic number.

It is an amenable number.

8890471988 is a deficient number, since it is larger than the sum of its proper divisors (6727012972).

8890471988 is a wasteful number, since it uses less digits than its factorization.

8890471988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8451286 (or 8451284 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 62.

The square root of 8890471988 is about 94289.2994353018. The cubic root of 8890471988 is about 2071.6113064281.

The spelling of 8890471988 in words is "eight billion, eight hundred ninety million, four hundred seventy-one thousand, nine hundred eighty-eight".