857013 has 8 divisors (see below), whose sum is σ = 1147008. Its totient is φ = 569184.

The previous prime is 857011. The next prime is 857027. The reversal of 857013 is 310758.

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

It is not a de Polignac number, because 857013 - 2¹ = 857011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1081 + ... + 1697.

It is an arithmetic number, because the mean of its divisors is an integer number (143376).

2⁸⁵⁷⁰¹³ is an apocalyptic number.

It is an amenable number.

857013 is a deficient number, since it is larger than the sum of its proper divisors (289995).

857013 is a wasteful number, since it uses less digits than its factorization.

857013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 857013 is about 925.7499662436. The cubic root of 857013 is about 94.9866278501.

The spelling of 857013 in words is "eight hundred fifty-seven thousand, thirteen".