847850513 has 2 divisors, whose sum is σ = 847850514. Its totient is φ = 847850512.

The previous prime is 847850501. The next prime is 847850551. The reversal of 847850513 is 315058748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 715669504 + 132181009 = 26752^2 + 11497^2 .

It is a cyclic number.

It is not a de Polignac number, because 847850513 - 2¹⁸ = 847588369 is a prime.

It is not a weakly prime, because it can be changed into another prime (847850573) 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, 423925256 + 423925257.

It is an arithmetic number, because the mean of its divisors is an integer number (423925257).

Almost surely, 2^847850513 is an apocalyptic number.

It is an amenable number.

847850513 is a deficient number, since it is larger than the sum of its proper divisors (1).

847850513 is an equidigital number, since it uses as much as digits as its factorization.

847850513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 847850513 is about 29117.8727416685. The cubic root of 847850513 is about 946.4690765925.

The spelling of 847850513 in words is "eight hundred forty-seven million, eight hundred fifty thousand, five hundred thirteen".