806986913 has 2 divisors, whose sum is σ = 806986914. Its totient is φ = 806986912.

The previous prime is 806986903. The next prime is 806986931. The reversal of 806986913 is 319689608.

Together with next prime (806986931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 806162449 + 824464 = 28393^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 806986913 - 2⁶ = 806986849 is a prime.

It is not a weakly prime, because it can be changed into another prime (806986903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403493456 + 403493457.

It is an arithmetic number, because the mean of its divisors is an integer number (403493457).

Almost surely, 2^806986913 is an apocalyptic number.

It is an amenable number.

806986913 is a deficient number, since it is larger than the sum of its proper divisors (1).

806986913 is an equidigital number, since it uses as much as digits as its factorization.

806986913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 806986913 is about 28407.5150796405. The cubic root of 806986913 is about 931.0124684759.

The spelling of 806986913 in words is "eight hundred six million, nine hundred eighty-six thousand, nine hundred thirteen".