613356813 has 8 divisors (see below), whose sum is σ = 908676800. Its totient is φ = 408904524.

The previous prime is 613356811. The next prime is 613356827. The reversal of 613356813 is 318653316.

It is a happy number.

613356813 is a `hidden beast` number, since 61 + 33 + 568 + 1 + 3 = 666.

It is not a de Polignac number, because 613356813 - 2¹ = 613356811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613356811) 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, 11358433 + ... + 11358486.

It is an arithmetic number, because the mean of its divisors is an integer number (113584600).

Almost surely, 2^613356813 is an apocalyptic number.

It is an amenable number.

613356813 is a deficient number, since it is larger than the sum of its proper divisors (295319987).

613356813 is a wasteful number, since it uses less digits than its factorization.

613356813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22716928 (or 22716922 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 613356813 is about 24766.0415286739. The cubic root of 613356813 is about 849.6454405896.

The spelling of 613356813 in words is "six hundred thirteen million, three hundred fifty-six thousand, eight hundred thirteen".