847586461 has 2 divisors, whose sum is σ = 847586462. Its totient is φ = 847586460.

The previous prime is 847586437. The next prime is 847586473. The reversal of 847586461 is 164685748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527391225 + 320195236 = 22965^2 + 17894^2 .

It is a cyclic number.

It is not a de Polignac number, because 847586461 - 2¹³ = 847578269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (847586401) 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, 423793230 + 423793231.

It is an arithmetic number, because the mean of its divisors is an integer number (423793231).

Almost surely, 2^847586461 is an apocalyptic number.

It is an amenable number.

847586461 is a deficient number, since it is larger than the sum of its proper divisors (1).

847586461 is an equidigital number, since it uses as much as digits as its factorization.

847586461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 49.

The square root of 847586461 is about 29113.3381974654. The cubic root of 847586461 is about 946.3708112349.

It can be divided in two parts, 84758 and 6461, that added together give a palindrome (91219).

The spelling of 847586461 in words is "eight hundred forty-seven million, five hundred eighty-six thousand, four hundred sixty-one".