100872843 has 16 divisors (see below), whose sum is σ = 142437120. Its totient is φ = 63321696.

The previous prime is 100872829. The next prime is 100872907. The reversal of 100872843 is 348278001.

It is not a de Polignac number, because 100872843 - 2²⁰ = 99824267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100872823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4221 + ... + 14817.

It is an arithmetic number, because the mean of its divisors is an integer number (8902320).

Almost surely, 2^100872843 is an apocalyptic number.

100872843 is a deficient number, since it is larger than the sum of its proper divisors (41564277).

100872843 is a wasteful number, since it uses less digits than its factorization.

100872843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10786.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 100872843 is about 10043.5473314960. The cubic root of 100872843 is about 465.5054326145.

The spelling of 100872843 in words is "one hundred million, eight hundred seventy-two thousand, eight hundred forty-three".