839316745 has 8 divisors (see below), whose sum is σ = 1026183816. Its totient is φ = 658784256.

The previous prime is 839316743. The next prime is 839316749. The reversal of 839316745 is 547613938.

It can be written as a sum of positive squares in 4 ways, for example, as 356152384 + 483164361 = 18872^2 + 21981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 839316745 - 2¹ = 839316743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 839316695 and 839316704.

It is not an unprimeable number, because it can be changed into a prime (839316743) 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 7 ways as a sum of consecutive naturals, for example, 1583352 + ... + 1583881.

It is an arithmetic number, because the mean of its divisors is an integer number (128272977).

Almost surely, 2^839316745 is an apocalyptic number.

It is an amenable number.

839316745 is a deficient number, since it is larger than the sum of its proper divisors (186867071).

839316745 is a wasteful number, since it uses less digits than its factorization.

839316745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167291.

The product of its digits is 544320, while the sum is 46.

The square root of 839316745 is about 28970.9638258723. The cubic root of 839316745 is about 943.2829022250.

The spelling of 839316745 in words is "eight hundred thirty-nine million, three hundred sixteen thousand, seven hundred forty-five".