867633894 has 12 divisors (see below), whose sum is σ = 1879873476. Its totient is φ = 289211292.

The previous prime is 867633869. The next prime is 867633911. The reversal of 867633894 is 498336768.

It is a self number, because there is not a number n which added to its sum of digits gives 867633894.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24100924 + ... + 24100959.

It is an arithmetic number, because the mean of its divisors is an integer number (156656123).

Almost surely, 2^867633894 is an apocalyptic number.

867633894 is an abundant number, since it is smaller than the sum of its proper divisors (1012239582).

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

867633894 is a wasteful number, since it uses less digits than its factorization.

867633894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48201891 (or 48201888 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 867633894 is about 29455.6258463472. The cubic root of 867633894 is about 953.7740522086.

The spelling of 867633894 in words is "eight hundred sixty-seven million, six hundred thirty-three thousand, eight hundred ninety-four".