856971373 has 8 divisors (see below), whose sum is σ = 887241600. Its totient is φ = 826749168.

The previous prime is 856971361. The next prime is 856971397. The reversal of 856971373 is 373179658.

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

It is not a de Polignac number, because 856971373 - 2⁵ = 856971341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856978373) 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, 26448 + ... + 49126.

It is an arithmetic number, because the mean of its divisors is an integer number (110905200).

Almost surely, 2^856971373 is an apocalyptic number.

It is an amenable number.

856971373 is a deficient number, since it is larger than the sum of its proper divisors (30270227).

856971373 is a wasteful number, since it uses less digits than its factorization.

856971373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24011.

The product of its digits is 952560, while the sum is 49.

The square root of 856971373 is about 29274.0733926797. The cubic root of 856971373 is about 949.8508992225.

The spelling of 856971373 in words is "eight hundred fifty-six million, nine hundred seventy-one thousand, three hundred seventy-three".