9228778229 has 4 divisors (see below), whose sum is σ = 10067758080. Its totient is φ = 8389798380.

The previous prime is 9228778147. The next prime is 9228778271.

It is a happy number.

9228778229 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 9228778229 - 2¹² = 9228774133 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 (9228778829) 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, 419489909 + ... + 419489930.

It is an arithmetic number, because the mean of its divisors is an integer number (2516939520).

Almost surely, 2^9228778229 is an apocalyptic number.

It is an amenable number.

9228778229 is a deficient number, since it is larger than the sum of its proper divisors (838979851).

9228778229 is a wasteful number, since it uses less digits than its factorization.

9228778229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838979850.

The product of its digits is 4064256, while the sum is 56.

The square root of 9228778229 is about 96066.5302225494. The cubic root of 9228778229 is about 2097.5616618967.

The spelling of 9228778229 in words is "nine billion, two hundred twenty-eight million, seven hundred seventy-eight thousand, two hundred twenty-nine".