9892772989 has 4 divisors (see below), whose sum is σ = 10792116000. Its totient is φ = 8993429980.

The previous prime is 9892772969. The next prime is 9892772999.

9892772989 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 9892772989 - 2¹¹ = 9892770941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9892772969) 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, 449671489 + ... + 449671510.

It is an arithmetic number, because the mean of its divisors is an integer number (2698029000).

Almost surely, 2^9892772989 is an apocalyptic number.

It is an amenable number.

9892772989 is a deficient number, since it is larger than the sum of its proper divisors (899343011).

9892772989 is a wasteful number, since it uses less digits than its factorization.

9892772989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899343010.

The product of its digits is 82301184, while the sum is 70.

The square root of 9892772989 is about 99462.4199836300. The cubic root of 9892772989 is about 2146.7065486007.

The spelling of 9892772989 in words is "nine billion, eight hundred ninety-two million, seven hundred seventy-two thousand, nine hundred eighty-nine".