8338945 has 4 divisors (see below), whose sum is σ = 10006740. Its totient is φ = 6671152.

The previous prime is 8338943. The next prime is 8338961. The reversal of 8338945 is 5498338.

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 5216656 + 3122289 = 2284^2 + 1767^2 .

It is a cyclic number.

It is not a de Polignac number, because 8338945 - 2¹ = 8338943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8338898 and 8338907.

It is not an unprimeable number, because it can be changed into a prime (8338943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833890 + ... + 833899.

It is an arithmetic number, because the mean of its divisors is an integer number (2501685).

Almost surely, 2^8338945 is an apocalyptic number.

It is an amenable number.

8338945 is a deficient number, since it is larger than the sum of its proper divisors (1667795).

8338945 is a wasteful number, since it uses less digits than its factorization.

8338945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667794.

The product of its digits is 103680, while the sum is 40.

The square root of 8338945 is about 2887.7231515504. The cubic root of 8338945 is about 202.7855646947.

The spelling of 8338945 in words is "eight million, three hundred thirty-eight thousand, nine hundred forty-five".