855857073 has 8 divisors (see below), whose sum is σ = 1154891808. Its totient is φ = 563696864.

The previous prime is 855857069. The next prime is 855857087. The reversal of 855857073 is 370758558.

It is a happy number.

855857073 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 855857073 - 2² = 855857069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (855857003) 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, 1718340 + ... + 1718837.

It is an arithmetic number, because the mean of its divisors is an integer number (144361476).

Almost surely, 2^855857073 is an apocalyptic number.

855857073 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

855857073 is a deficient number, since it is larger than the sum of its proper divisors (299034735).

855857073 is a wasteful number, since it uses less digits than its factorization.

855857073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437263.

The product of its (nonzero) digits is 1176000, while the sum is 48.

The square root of 855857073 is about 29255.0350025427. The cubic root of 855857073 is about 949.4390309587.

The spelling of 855857073 in words is "eight hundred fifty-five million, eight hundred fifty-seven thousand, seventy-three".