100199788 has 12 divisors (see below), whose sum is σ = 188838160. Its totient is φ = 46246032.

The previous prime is 100199783. The next prime is 100199789. The reversal of 100199788 is 887991001.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (100199783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963408 + ... + 963511.

Almost surely, 2^100199788 is an apocalyptic number.

It is an amenable number.

100199788 is a deficient number, since it is larger than the sum of its proper divisors (88638372).

100199788 is a wasteful number, since it uses less digits than its factorization.

100199788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926936 (or 1926934 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 43.

The square root of 100199788 is about 10009.9844155723. The cubic root of 100199788 is about 464.4677889837.

The spelling of 100199788 in words is "one hundred million, one hundred ninety-nine thousand, seven hundred eighty-eight".