853674673 has 4 divisors (see below), whose sum is σ = 857402740. Its totient is φ = 849946608.

The previous prime is 853674643. The next prime is 853674697. The reversal of 853674673 is 376476358.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 376476358 = 2 ⋅188238179.

It can be written as a sum of positive squares in 2 ways, for example, as 714599824 + 139074849 = 26732^2 + 11793^2 .

It is a cyclic number.

It is not a de Polignac number, because 853674673 - 2⁵ = 853674641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (853674643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1863690 + ... + 1864147.

It is an arithmetic number, because the mean of its divisors is an integer number (214350685).

Almost surely, 2^853674673 is an apocalyptic number.

It is an amenable number.

853674673 is a deficient number, since it is larger than the sum of its proper divisors (3728067).

853674673 is a wasteful number, since it uses less digits than its factorization.

853674673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728066.

The product of its digits is 2540160, while the sum is 49.

The square root of 853674673 is about 29217.7116318168. The cubic root of 853674673 is about 948.6313340022.

The spelling of 853674673 in words is "eight hundred fifty-three million, six hundred seventy-four thousand, six hundred seventy-three".