857294471 has 8 divisors (see below), whose sum is σ = 935445888. Its totient is φ = 779179000.

The previous prime is 857294443. The next prime is 857294507. The reversal of 857294471 is 174492758.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-857294471 is a prime.

It is a super-3 number, since 3×857294471³ (a number of 28 digits) contains 333 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 (857294401) 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, 75326 + ... + 85956.

It is an arithmetic number, because the mean of its divisors is an integer number (116930736).

Almost surely, 2^857294471 is an apocalyptic number.

857294471 is a deficient number, since it is larger than the sum of its proper divisors (78151417).

857294471 is a wasteful number, since it uses less digits than its factorization.

857294471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17973.

The product of its digits is 564480, while the sum is 47.

The square root of 857294471 is about 29279.5913735148. The cubic root of 857294471 is about 949.9702561325.

The spelling of 857294471 in words is "eight hundred fifty-seven million, two hundred ninety-four thousand, four hundred seventy-one".