855938845 has 8 divisors (see below), whose sum is σ = 1028303064. Its totient is φ = 683966784.

The previous prime is 855938827. The next prime is 855938879. The reversal of 855938845 is 548839558.

It can be written as a sum of positive squares in 4 ways, for example, as 268894404 + 587044441 = 16398^2 + 24229^2 .

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 855938845 - 2⁷ = 855938717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93214 + ... + 101983.

It is an arithmetic number, because the mean of its divisors is an integer number (128537883).

Almost surely, 2^855938845 is an apocalyptic number.

It is an amenable number.

855938845 is a deficient number, since it is larger than the sum of its proper divisors (172364219).

855938845 is a wasteful number, since it uses less digits than its factorization.

855938845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196079.

The product of its digits is 6912000, while the sum is 55.

The square root of 855938845 is about 29256.4325405542. The cubic root of 855938845 is about 949.4692677270.

The spelling of 855938845 in words is "eight hundred fifty-five million, nine hundred thirty-eight thousand, eight hundred forty-five".