988464889 has 4 divisors (see below), whose sum is σ = 989021056. Its totient is φ = 987908724.

The previous prime is 988464839. The next prime is 988464899.

988464889 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 988464889 - 2⁷ = 988464761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 988464889.

It is not an unprimeable number, because it can be changed into a prime (988464839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275409 + ... + 278974.

It is an arithmetic number, because the mean of its divisors is an integer number (247255264).

Almost surely, 2^988464889 is an apocalyptic number.

It is an amenable number.

988464889 is a deficient number, since it is larger than the sum of its proper divisors (556167).

988464889 is a wasteful number, since it uses less digits than its factorization.

988464889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556166.

The product of its digits is 31850496, while the sum is 64.

The square root of 988464889 is about 31439.8614659798. The cubic root of 988464889 is about 996.1400832120.

The spelling of 988464889 in words is "nine hundred eighty-eight million, four hundred sixty-four thousand, eight hundred eighty-nine".