807308813 has 2 divisors, whose sum is σ = 807308814. Its totient is φ = 807308812.

The previous prime is 807308797. The next prime is 807308833. The reversal of 807308813 is 318803708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 806673604 + 635209 = 28402^2 + 797^2 .

It is a cyclic number.

It is not a de Polignac number, because 807308813 - 2⁴ = 807308797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (807308833) 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 as a sum of consecutive naturals, namely, 403654406 + 403654407.

It is an arithmetic number, because the mean of its divisors is an integer number (403654407).

Almost surely, 2^807308813 is an apocalyptic number.

It is an amenable number.

807308813 is a deficient number, since it is larger than the sum of its proper divisors (1).

807308813 is an equidigital number, since it uses as much as digits as its factorization.

807308813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 807308813 is about 28413.1802690230. The cubic root of 807308813 is about 931.1362429218.

The spelling of 807308813 in words is "eight hundred seven million, three hundred eight thousand, eight hundred thirteen".