8443385245 has 4 divisors (see below), whose sum is σ = 10132062300. Its totient is φ = 6754708192.

The previous prime is 8443385227. The next prime is 8443385297. The reversal of 8443385245 is 5425833448.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4210841881 + 4232543364 = 64891^2 + 65058^2 .

It is a cyclic number.

It is not a de Polignac number, because 8443385245 - 2⁷ = 8443385117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8443385195 and 8443385204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844338520 + ... + 844338529.

It is an arithmetic number, because the mean of its divisors is an integer number (2533015575).

Almost surely, 2^8443385245 is an apocalyptic number.

It is an amenable number.

8443385245 is a deficient number, since it is larger than the sum of its proper divisors (1688677055).

8443385245 is a wasteful number, since it uses less digits than its factorization.

8443385245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688677054.

The product of its digits is 1843200, while the sum is 46.

The square root of 8443385245 is about 91887.8949862276. The cubic root of 8443385245 is about 2036.2864361469.

The spelling of 8443385245 in words is "eight billion, four hundred forty-three million, three hundred eighty-five thousand, two hundred forty-five".