988973665 has 8 divisors (see below), whose sum is σ = 1238367168. Its totient is φ = 756779760.

The previous prime is 988973653. The next prime is 988973707. The reversal of 988973665 is 566379889.

988973665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 988973665 - 2⁵ = 988973633 is a prime.

It is a Duffinian number.

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, 4299771 + ... + 4300000.

It is an arithmetic number, because the mean of its divisors is an integer number (154795896).

Almost surely, 2^988973665 is an apocalyptic number.

It is an amenable number.

988973665 is a deficient number, since it is larger than the sum of its proper divisors (249393503).

988973665 is a wasteful number, since it uses less digits than its factorization.

988973665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8599799.

The product of its digits is 19595520, while the sum is 61.

The square root of 988973665 is about 31447.9516821048. The cubic root of 988973665 is about 996.3109627388.

The spelling of 988973665 in words is "nine hundred eighty-eight million, nine hundred seventy-three thousand, six hundred sixty-five".