867493818 has 12 divisors (see below), whose sum is σ = 1879569978. Its totient is φ = 289164600.

The previous prime is 867493817. The next prime is 867493843. The reversal of 867493818 is 818394768.

It can be written as a sum of positive squares in only one way, i.e., 853633089 + 13860729 = 29217^2 + 3723^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (867493813) 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 5 ways as a sum of consecutive naturals, for example, 24097033 + ... + 24097068.

Almost surely, 2^867493818 is an apocalyptic number.

867493818 is an abundant number, since it is smaller than the sum of its proper divisors (1012076160).

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

867493818 is a wasteful number, since it uses less digits than its factorization.

867493818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48194109 (or 48194106 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 867493818 is about 29453.2480042524. The cubic root of 867493818 is about 953.7227217855.

The spelling of 867493818 in words is "eight hundred sixty-seven million, four hundred ninety-three thousand, eight hundred eighteen".