842573077 has 2 divisors, whose sum is σ = 842573078. Its totient is φ = 842573076.

The previous prime is 842573071. The next prime is 842573111. The reversal of 842573077 is 770375248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 819905956 + 22667121 = 28634^2 + 4761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-842573077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842573071) 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, 421286538 + 421286539.

It is an arithmetic number, because the mean of its divisors is an integer number (421286539).

Almost surely, 2^842573077 is an apocalyptic number.

It is an amenable number.

842573077 is a deficient number, since it is larger than the sum of its proper divisors (1).

842573077 is an equidigital number, since it uses as much as digits as its factorization.

842573077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 329280, while the sum is 43.

The square root of 842573077 is about 29027.1093462646. The cubic root of 842573077 is about 944.5012259251.

The spelling of 842573077 in words is "eight hundred forty-two million, five hundred seventy-three thousand, seventy-seven".