8999669998 has 24 divisors (see below), whose sum is σ = 15619269960. Its totient is φ = 3875454000.

The previous prime is 8999669927. The next prime is 8999669999.

8999669998 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8999669999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 974053 + ... + 983248.

It is an arithmetic number, because the mean of its divisors is an integer number (650802915).

Almost surely, 2^8999669998 is an apocalyptic number.

8999669998 is a deficient number, since it is larger than the sum of its proper divisors (6619599962).

8999669998 is a wasteful number, since it uses less digits than its factorization.

8999669998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957344 (or 1957333 counting only the distinct ones).

The product of its digits is 1224440064, while the sum is 82.

The square root of 8999669998 is about 94866.5905258537. The cubic root of 8999669998 is about 2080.0583993404.

The spelling of 8999669998 in words is "eight billion, nine hundred ninety-nine million, six hundred sixty-nine thousand, nine hundred ninety-eight".