855410873 has 4 divisors (see below), whose sum is σ = 855469428. Its totient is φ = 855352320.

The previous prime is 855410849. The next prime is 855410903. The reversal of 855410873 is 378014558.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 385258384 + 470152489 = 19628^2 + 21683^2 .

It is a cyclic number.

It is not a de Polignac number, because 855410873 - 2²⁴ = 838633657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 855410873.

It is not an unprimeable number, because it can be changed into a prime (855410473) 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, 12665 + ... + 43257.

It is an arithmetic number, because the mean of its divisors is an integer number (213867357).

Almost surely, 2^855410873 is an apocalyptic number.

It is an amenable number.

855410873 is a deficient number, since it is larger than the sum of its proper divisors (58555).

855410873 is a wasteful number, since it uses less digits than its factorization.

855410873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58554.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 855410873 is about 29247.4079706219. The cubic root of 855410873 is about 949.2740059985.

The spelling of 855410873 in words is "eight hundred fifty-five million, four hundred ten thousand, eight hundred seventy-three".