857945063 has 2 divisors, whose sum is σ = 857945064. Its totient is φ = 857945062.

The previous prime is 857945029. The next prime is 857945083. The reversal of 857945063 is 360549758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 857945063 - 2⁶ = 857944999 is a prime.

It is a super-2 number, since 2×857945063² = 1472139462252147938, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 857944999 and 857945017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (857945083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428972531 + 428972532.

It is an arithmetic number, because the mean of its divisors is an integer number (428972532).

Almost surely, 2^857945063 is an apocalyptic number.

857945063 is a deficient number, since it is larger than the sum of its proper divisors (1).

857945063 is an equidigital number, since it uses as much as digits as its factorization.

857945063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 857945063 is about 29290.6992576142. The cubic root of 857945063 is about 950.2105029374.

The spelling of 857945063 in words is "eight hundred fifty-seven million, nine hundred forty-five thousand, sixty-three".