857498056 has 16 divisors (see below), whose sum is σ = 1608850800. Its totient is φ = 428471184.

The previous prime is 857498041. The next prime is 857498119. The reversal of 857498056 is 650894758.

It is a junction number, because it is equal to n+sod(n) for n = 857497994 and 857498012.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 21310 + ... + 46573.

It is an arithmetic number, because the mean of its divisors is an integer number (100553175).

Almost surely, 2^857498056 is an apocalyptic number.

It is an amenable number.

857498056 is a deficient number, since it is larger than the sum of its proper divisors (751352744).

857498056 is a wasteful number, since it uses less digits than its factorization.

857498056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69468 (or 69464 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 52.

The square root of 857498056 is about 29283.0677354679. The cubic root of 857498056 is about 950.0454478719.

The spelling of 857498056 in words is "eight hundred fifty-seven million, four hundred ninety-eight thousand, fifty-six".