813637413 has 8 divisors (see below), whose sum is σ = 1205388800. Its totient is φ = 542424924.

The previous prime is 813637393. The next prime is 813637453. The reversal of 813637413 is 314736318.

813637413 is a `hidden beast` number, since 8 + 1 + 3 + 637 + 4 + 13 = 666.

It is not a de Polignac number, because 813637413 - 2¹⁰ = 813636389 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 (813637453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15067333 + ... + 15067386.

It is an arithmetic number, because the mean of its divisors is an integer number (150673600).

Almost surely, 2^813637413 is an apocalyptic number.

It is an amenable number.

813637413 is a deficient number, since it is larger than the sum of its proper divisors (391751387).

813637413 is a wasteful number, since it uses less digits than its factorization.

813637413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30134728 (or 30134722 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 813637413 is about 28524.3301937136. The cubic root of 813637413 is about 933.5630125082.

The spelling of 813637413 in words is "eight hundred thirteen million, six hundred thirty-seven thousand, four hundred thirteen".