856324065 has 8 divisors (see below), whose sum is σ = 1370118528. Its totient is φ = 456706160.

The previous prime is 856324061. The next prime is 856324111. The reversal of 856324065 is 560423658.

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

It is not a de Polignac number, because 856324065 - 2² = 856324061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (856324061) 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, 28544121 + ... + 28544150.

It is an arithmetic number, because the mean of its divisors is an integer number (171264816).

Almost surely, 2^856324065 is an apocalyptic number.

It is an amenable number.

856324065 is a deficient number, since it is larger than the sum of its proper divisors (513794463).

856324065 is a wasteful number, since it uses less digits than its factorization.

856324065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57088279.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 856324065 is about 29263.0153094311. The cubic root of 856324065 is about 949.6116843249.

The spelling of 856324065 in words is "eight hundred fifty-six million, three hundred twenty-four thousand, sixty-five".