8988999 has 4 divisors (see below), whose sum is σ = 11985336. Its totient is φ = 5992664.

The previous prime is 8988997. The next prime is 8989007. The reversal of 8988999 is 9998898.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8988999 - 2¹ = 8988997 is a prime.

8988999 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8988997) 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, 1498164 + ... + 1498169.

It is an arithmetic number, because the mean of its divisors is an integer number (2996334).

Almost surely, 2^8988999 is an apocalyptic number.

8988999 is a deficient number, since it is larger than the sum of its proper divisors (2996337).

8988999 is a wasteful number, since it uses less digits than its factorization.

8988999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996336.

The product of its digits is 3359232, while the sum is 60.

The square root of 8988999 is about 2998.1659393703. The cubic root of 8988999 is about 207.9235958903.

The spelling of 8988999 in words is "eight million, nine hundred eighty-eight thousand, nine hundred ninety-nine".