923222845 has 4 divisors (see below), whose sum is σ = 1107867420. Its totient is φ = 738578272.

The previous prime is 923222843. The next prime is 923222851. The reversal of 923222845 is 548222329.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 548222329 = 2833 ⋅193513.

It can be written as a sum of positive squares in 2 ways, for example, as 103774969 + 819447876 = 10187^2 + 28626^2 .

It is a cyclic number.

It is not a de Polignac number, because 923222845 - 2¹ = 923222843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923222843) 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, 92322280 + ... + 92322289.

It is an arithmetic number, because the mean of its divisors is an integer number (276966855).

Almost surely, 2^923222845 is an apocalyptic number.

It is an amenable number.

923222845 is a deficient number, since it is larger than the sum of its proper divisors (184644575).

923222845 is a wasteful number, since it uses less digits than its factorization.

923222845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184644574.

The product of its digits is 69120, while the sum is 37.

The square root of 923222845 is about 30384.5823568467. The cubic root of 923222845 is about 973.7231921576.

The spelling of 923222845 in words is "nine hundred twenty-three million, two hundred twenty-two thousand, eight hundred forty-five".