855476673 has 4 divisors (see below), whose sum is σ = 1140635568. Its totient is φ = 570317780.

The previous prime is 855476647. The next prime is 855476693. The reversal of 855476673 is 376674558.

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.

It is a cyclic number.

It is not a de Polignac number, because 855476673 - 2²¹ = 853379521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (855476693) 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, 142579443 + ... + 142579448.

It is an arithmetic number, because the mean of its divisors is an integer number (285158892).

Almost surely, 2^855476673 is an apocalyptic number.

It is an amenable number.

855476673 is a deficient number, since it is larger than the sum of its proper divisors (285158895).

855476673 is a wasteful number, since it uses less digits than its factorization.

855476673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285158894.

The product of its digits is 4233600, while the sum is 51.

The square root of 855476673 is about 29248.5328349987. The cubic root of 855476673 is about 949.2983454241.

The spelling of 855476673 in words is "eight hundred fifty-five million, four hundred seventy-six thousand, six hundred seventy-three".