855898811 has 8 divisors (see below), whose sum is σ = 876308544. Its totient is φ = 835580800.

The previous prime is 855898787. The next prime is 855898817. The reversal of 855898811 is 118898558.

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 855898811 - 2¹⁴ = 855882427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (855898817) 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, 3860 + ... + 41553.

It is an arithmetic number, because the mean of its divisors is an integer number (109538568).

Almost surely, 2^855898811 is an apocalyptic number.

855898811 is a deficient number, since it is larger than the sum of its proper divisors (20409733).

855898811 is a wasteful number, since it uses less digits than its factorization.

855898811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45861.

The product of its digits is 921600, while the sum is 53.

The square root of 855898811 is about 29255.7483411380. The cubic root of 855898811 is about 949.4544646268.

The spelling of 855898811 in words is "eight hundred fifty-five million, eight hundred ninety-eight thousand, eight hundred eleven".