855819005 has 8 divisors (see below), whose sum is σ = 1048833792. Its totient is φ = 670087888.

The previous prime is 855819001. The next prime is 855819017. The reversal of 855819005 is 500918558.

855819005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 855819005 - 2² = 855819001 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 (855819001) 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, 1820657 + ... + 1821126.

It is an arithmetic number, because the mean of its divisors is an integer number (131104224).

Almost surely, 2^855819005 is an apocalyptic number.

It is an amenable number.

855819005 is a deficient number, since it is larger than the sum of its proper divisors (193014787).

855819005 is a wasteful number, since it uses less digits than its factorization.

855819005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3641835.

The product of its (nonzero) digits is 72000, while the sum is 41.

The square root of 855819005 is about 29254.3843722612. The cubic root of 855819005 is about 949.4249539272.

The spelling of 855819005 in words is "eight hundred fifty-five million, eight hundred nineteen thousand, five".