613848393 has 12 divisors (see below), whose sum is σ = 938827188. Its totient is φ = 385159680.

The previous prime is 613848373. The next prime is 613848419. The reversal of 613848393 is 393848316.

It can be written as a sum of positive squares in 2 ways, for example, as 365880384 + 247968009 = 19128^2 + 15747^2 .

It is a de Polignac number, because none of the positive numbers 2^k-613848393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (613848373) 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 11 ways as a sum of consecutive naturals, for example, 2005888 + ... + 2006193.

It is an arithmetic number, because the mean of its divisors is an integer number (78235599).

Almost surely, 2^613848393 is an apocalyptic number.

It is an amenable number.

613848393 is a deficient number, since it is larger than the sum of its proper divisors (324978795).

613848393 is a wasteful number, since it uses less digits than its factorization.

613848393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012104 (or 4012101 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 613848393 is about 24775.9640175715. The cubic root of 613848393 is about 849.8723651492.

The spelling of 613848393 in words is "six hundred thirteen million, eight hundred forty-eight thousand, three hundred ninety-three".