842017854 has 16 divisors (see below), whose sum is σ = 1783096848. Its totient is φ = 264162432.

The previous prime is 842017853. The next prime is 842017901. The reversal of 842017854 is 458710248.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842017853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4127437 + ... + 4127640.

It is an arithmetic number, because the mean of its divisors is an integer number (111443553).

Almost surely, 2^842017854 is an apocalyptic number.

842017854 is an abundant number, since it is smaller than the sum of its proper divisors (941078994).

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

842017854 is a wasteful number, since it uses less digits than its factorization.

842017854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8255099.

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 842017854 is about 29017.5439001994. The cubic root of 842017854 is about 944.2937171052.

The spelling of 842017854 in words is "eight hundred forty-two million, seventeen thousand, eight hundred fifty-four".