9999992243 has 4 divisors (see below), whose sum is σ = 10002175008. Its totient is φ = 9997809480.

The previous prime is 9999992227. The next prime is 9999992273. The reversal of 9999992243 is 3422999999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3422999999 = 4969 ⋅688871.

It is a cyclic number.

It is not a de Polignac number, because 9999992243 - 2⁴ = 9999992227 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 9999992243.

It is not an unprimeable number, because it can be changed into a prime (9999992273) 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, 1084496 + ... + 1093677.

It is an arithmetic number, because the mean of its divisors is an integer number (2500543752).

Almost surely, 2^9999992243 is an apocalyptic number.

9999992243 is a deficient number, since it is larger than the sum of its proper divisors (2182765).

9999992243 is a wasteful number, since it uses less digits than its factorization.

9999992243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182764.

The product of its digits is 25509168, while the sum is 65.

The square root of 9999992243 is about 99999.9612149925. The cubic root of 9999992243 is about 2154.4341329667.

The spelling of 9999992243 in words is "nine billion, nine hundred ninety-nine million, nine hundred ninety-two thousand, two hundred forty-three".