857116351 has 16 divisors (see below), whose sum is σ = 1057537600. Its totient is φ = 676470528.

The previous prime is 857116343. The next prime is 857116411. The reversal of 857116351 is 153611758.

It is a cyclic number.

It is not a de Polignac number, because 857116351 - 2³ = 857116343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 857116351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857116151) 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, 25705 + ... + 48733.

It is an arithmetic number, because the mean of its divisors is an integer number (66096100).

Almost surely, 2^857116351 is an apocalyptic number.

857116351 is a deficient number, since it is larger than the sum of its proper divisors (200421249).

857116351 is a wasteful number, since it uses less digits than its factorization.

857116351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23458.

The product of its digits is 25200, while the sum is 37.

The square root of 857116351 is about 29276.5495063882. The cubic root of 857116351 is about 949.9044598287.

The spelling of 857116351 in words is "eight hundred fifty-seven million, one hundred sixteen thousand, three hundred fifty-one".