845483557 has 2 divisors, whose sum is σ = 845483558. Its totient is φ = 845483556.

The previous prime is 845483543. The next prime is 845483599. The reversal of 845483557 is 755384548.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 690953796 + 154529761 = 26286^2 + 12431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-845483557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 845483557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (845483257) 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, 422741778 + 422741779.

It is an arithmetic number, because the mean of its divisors is an integer number (422741779).

Almost surely, 2^845483557 is an apocalyptic number.

It is an amenable number.

845483557 is a deficient number, since it is larger than the sum of its proper divisors (1).

845483557 is an equidigital number, since it uses as much as digits as its factorization.

845483557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688000, while the sum is 49.

The square root of 845483557 is about 29077.1999511645. The cubic root of 845483557 is about 945.5874987760.

Subtracting from 845483557 its reverse (755384548), we obtain a palindrome (90099009).

The spelling of 845483557 in words is "eight hundred forty-five million, four hundred eighty-three thousand, five hundred fifty-seven".