857472843 has 16 divisors (see below), whose sum is σ = 1211859360. Its totient is φ = 537440256.

The previous prime is 857472779. The next prime is 857472851. The reversal of 857472843 is 348274758.

It is not a de Polignac number, because 857472843 - 2⁶ = 857472779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 857472792 and 857472801.

It is not an unprimeable number, because it can be changed into a prime (857472883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41223 + ... + 58431.

It is an arithmetic number, because the mean of its divisors is an integer number (75741210).

Almost surely, 2^857472843 is an apocalyptic number.

857472843 is a deficient number, since it is larger than the sum of its proper divisors (354386517).

857472843 is a wasteful number, since it uses less digits than its factorization.

857472843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18206.

The product of its digits is 1505280, while the sum is 48.

The square root of 857472843 is about 29282.6372275449. The cubic root of 857472843 is about 950.0361363909.

The spelling of 857472843 in words is "eight hundred fifty-seven million, four hundred seventy-two thousand, eight hundred forty-three".