9989253790 has 8 divisors (see below), whose sum is σ = 17980656840. Its totient is φ = 3995701512.

The previous prime is 9989253779. The next prime is 9989253793. The reversal of 9989253790 is 973529899.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9989253793) 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, 499462680 + ... + 499462699.

It is an arithmetic number, because the mean of its divisors is an integer number (2247582105).

Almost surely, 2^9989253790 is an apocalyptic number.

9989253790 is a deficient number, since it is larger than the sum of its proper divisors (7991403050).

9989253790 is a wasteful number, since it uses less digits than its factorization.

9989253790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998925386.

The product of its (nonzero) digits is 11022480, while the sum is 61.

The square root of 9989253790 is about 99946.2545071100. The cubic root of 9989253790 is about 2153.6626798393.

The spelling of 9989253790 in words is "nine billion, nine hundred eighty-nine million, two hundred fifty-three thousand, seven hundred ninety".