100002872 has 8 divisors (see below), whose sum is σ = 187505400. Its totient is φ = 50001432.

The previous prime is 100002863. The next prime is 100002899. The reversal of 100002872 is 278200001.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250172 + ... + 6250187.

It is an arithmetic number, because the mean of its divisors is an integer number (23438175).

Almost surely, 2^100002872 is an apocalyptic number.

It is an amenable number.

100002872 is a deficient number, since it is larger than the sum of its proper divisors (87502528).

100002872 is a wasteful number, since it uses less digits than its factorization.

100002872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12500365 (or 12500361 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 100002872 is about 10000.1435989690. The cubic root of 100002872 is about 464.1633268664.

Adding to 100002872 its reverse (278200001), we get a palindrome (378202873).

The spelling of 100002872 in words is "one hundred million, two thousand, eight hundred seventy-two".