8423339805 has 12 divisors (see below), whose sum is σ = 14600455740. Its totient is φ = 4492447872.

The previous prime is 8423339803. The next prime is 8423339807. The reversal of 8423339805 is 5089333248.

It is an interprime number because it is at equal distance from previous prime (8423339803) and next prime (8423339807).

It can be written as a sum of positive squares in 2 ways, for example, as 6028901316 + 2394438489 = 77646^2 + 48933^2 .

It is not a de Polignac number, because 8423339805 - 2¹ = 8423339803 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 187185329 = 8423339805 / (8 + 4 + 2 + 3 + 3 + 3 + 9 + 8 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423339803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93592620 + ... + 93592709.

It is an arithmetic number, because the mean of its divisors is an integer number (1216704645).

Almost surely, 2^8423339805 is an apocalyptic number.

It is an amenable number.

8423339805 is a deficient number, since it is larger than the sum of its proper divisors (6177115935).

8423339805 is a wasteful number, since it uses less digits than its factorization.

8423339805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187185340 (or 187185337 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 8423339805 is about 91778.7546494285. The cubic root of 8423339805 is about 2034.6737100790.

The spelling of 8423339805 in words is "eight billion, four hundred twenty-three million, three hundred thirty-nine thousand, eight hundred five".