857472563 has 2 divisors, whose sum is σ = 857472564. Its totient is φ = 857472562.

The previous prime is 857472529. The next prime is 857472587. The reversal of 857472563 is 365274758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 857472563 - 2¹⁴ = 857456179 is a prime.

It is not a weakly prime, because it can be changed into another prime (857472593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428736281 + 428736282.

It is an arithmetic number, because the mean of its divisors is an integer number (428736282).

Almost surely, 2^857472563 is an apocalyptic number.

857472563 is a deficient number, since it is larger than the sum of its proper divisors (1).

857472563 is an equidigital number, since it uses as much as digits as its factorization.

857472563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1411200, while the sum is 47.

The square root of 857472563 is about 29282.6324465544. The cubic root of 857472563 is about 950.0360329823.

The spelling of 857472563 in words is "eight hundred fifty-seven million, four hundred seventy-two thousand, five hundred sixty-three".