845769473 has 2 divisors, whose sum is σ = 845769474. Its totient is φ = 845769472.

The previous prime is 845769469. The next prime is 845769487. The reversal of 845769473 is 374967548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 845181184 + 588289 = 29072^2 + 767^2 .

It is a cyclic number.

It is not a de Polignac number, because 845769473 - 2² = 845769469 is a prime.

It is not a weakly prime, because it can be changed into another prime (845769413) 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, 422884736 + 422884737.

It is an arithmetic number, because the mean of its divisors is an integer number (422884737).

Almost surely, 2^845769473 is an apocalyptic number.

It is an amenable number.

845769473 is a deficient number, since it is larger than the sum of its proper divisors (1).

845769473 is an equidigital number, since it uses as much as digits as its factorization.

845769473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 53.

The square root of 845769473 is about 29082.1160337414. The cubic root of 845769473 is about 945.6940761002.

It can be divided in two parts, 84576 and 9473, that added together give a palindrome (94049).

The spelling of 845769473 in words is "eight hundred forty-five million, seven hundred sixty-nine thousand, four hundred seventy-three".