857867113 has 4 divisors (see below), whose sum is σ = 857925760. Its totient is φ = 857808468.

The previous prime is 857867111. The next prime is 857867117. The reversal of 857867113 is 311768758.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 857867113 - 2¹ = 857867111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (857867111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12556 + ... + 43282.

It is an arithmetic number, because the mean of its divisors is an integer number (214481440).

Almost surely, 2^857867113 is an apocalyptic number.

It is an amenable number.

857867113 is a deficient number, since it is larger than the sum of its proper divisors (58647).

857867113 is a wasteful number, since it uses less digits than its factorization.

857867113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58646.

The product of its digits is 282240, while the sum is 46.

The square root of 857867113 is about 29289.3686002276. The cubic root of 857867113 is about 950.1817244234.

The spelling of 857867113 in words is "eight hundred fifty-seven million, eight hundred sixty-seven thousand, one hundred thirteen".