8429868 has 36 divisors (see below), whose sum is σ = 22237488. Its totient is φ = 2687520.

The previous prime is 8429867. The next prime is 8429893. The reversal of 8429868 is 8689248.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (8429867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4263 + ... + 5918.

It is an arithmetic number, because the mean of its divisors is an integer number (617708).

Almost surely, 2^8429868 is an apocalyptic number.

It is an amenable number.

8429868 is an abundant number, since it is smaller than the sum of its proper divisors (13807620).

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

8429868 is a wasteful number, since it uses less digits than its factorization.

8429868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10214 (or 10209 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 8429868 is about 2903.4234964951. The cubic root of 8429868 is about 203.5199206976.

The spelling of 8429868 in words is "eight million, four hundred twenty-nine thousand, eight hundred sixty-eight".