857852823 has 8 divisors (see below), whose sum is σ = 1145260288. Its totient is φ = 571173624.

The previous prime is 857852813. The next prime is 857852833. The reversal of 857852823 is 328258758.

It is an interprime number because it is at equal distance from previous prime (857852813) and next prime (857852833).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 857852823 - 2²¹ = 855755671 is a prime.

It is a super-2 number, since 2×857852823² = 1471822931858138658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857852803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179311 + ... + 184032.

It is an arithmetic number, because the mean of its divisors is an integer number (143157536).

Almost surely, 2^857852823 is an apocalyptic number.

857852823 is a deficient number, since it is larger than the sum of its proper divisors (287407465).

857852823 is a wasteful number, since it uses less digits than its factorization.

857852823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364133.

The product of its digits is 1075200, while the sum is 48.

The square root of 857852823 is about 29289.1246540418. The cubic root of 857852823 is about 950.1764484810.

The spelling of 857852823 in words is "eight hundred fifty-seven million, eight hundred fifty-two thousand, eight hundred twenty-three".