842800001 has 4 divisors (see below), whose sum is σ = 871862100. Its totient is φ = 813737904.

The previous prime is 842799989. The next prime is 842800003. The reversal of 842800001 is 100008248.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 646379776 + 196420225 = 25424^2 + 14015^2 .

It is a cyclic number.

It is not a de Polignac number, because 842800001 - 2¹⁰ = 842798977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 842800001.

It is not an unprimeable number, because it can be changed into a prime (842800003) 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 3 ways as a sum of consecutive naturals, for example, 14531006 + ... + 14531063.

It is an arithmetic number, because the mean of its divisors is an integer number (217965525).

Almost surely, 2^842800001 is an apocalyptic number.

It is an amenable number.

842800001 is a deficient number, since it is larger than the sum of its proper divisors (29062099).

842800001 is a wasteful number, since it uses less digits than its factorization.

842800001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29062098.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 842800001 is about 29031.0179118818. The cubic root of 842800001 is about 944.5860101666.

Adding to 842800001 its reverse (100008248), we get a palindrome (942808249).

The spelling of 842800001 in words is "eight hundred forty-two million, eight hundred thousand, one".