856473575 has 6 divisors (see below), whose sum is σ = 1062027264. Its totient is φ = 685178840.

The previous prime is 856473539. The next prime is 856473589. The reversal of 856473575 is 575374658.

It is not a de Polignac number, because 856473575 - 2¹⁸ = 856211431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 17129447 + ... + 17129496.

It is an arithmetic number, because the mean of its divisors is an integer number (177004544).

Almost surely, 2^856473575 is an apocalyptic number.

856473575 is a deficient number, since it is larger than the sum of its proper divisors (205553689).

856473575 is a wasteful number, since it uses less digits than its factorization.

856473575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34258953 (or 34258948 counting only the distinct ones).

The product of its digits is 3528000, while the sum is 50.

The square root of 856473575 is about 29265.5697877215. The cubic root of 856473575 is about 949.6669469631. Note that the first 3 decimals are identical.

The spelling of 856473575 in words is "eight hundred fifty-six million, four hundred seventy-three thousand, five hundred seventy-five".