854686458 has 64 divisors (see below), whose sum is σ = 2065461120. Its totient is φ = 260879616.

The previous prime is 854686457. The next prime is 854686471.

854686458 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (854686457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21385 + ... + 46547.

It is an arithmetic number, because the mean of its divisors is an integer number (32272830).

Almost surely, 2^854686458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 854686458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1032730560).

854686458 is an abundant number, since it is smaller than the sum of its proper divisors (1210774662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

854686458 is a wasteful number, since it uses less digits than its factorization.

854686458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25228 (or 25222 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 54.

The square root of 854686458 is about 29235.0210877297. The cubic root of 854686458 is about 949.0059622773.

The spelling of 854686458 in words is "eight hundred fifty-four million, six hundred eighty-six thousand, four hundred fifty-eight".