100987886 has 4 divisors (see below), whose sum is σ = 151481832. Its totient is φ = 50493942.

The previous prime is 100987847. The next prime is 100987891. The reversal of 100987886 is 688789001.

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

It is a self number, because there is not a number n which added to its sum of digits gives 100987886.

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, 25246970 + ... + 25246973.

It is an arithmetic number, because the mean of its divisors is an integer number (37870458).

Almost surely, 2^100987886 is an apocalyptic number.

100987886 is a deficient number, since it is larger than the sum of its proper divisors (50493946).

100987886 is an equidigital number, since it uses as much as digits as its factorization.

100987886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50493945.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 100987886 is about 10049.2729090218. The cubic root of 100987886 is about 465.6823312197.

The spelling of 100987886 in words is "one hundred million, nine hundred eighty-seven thousand, eight hundred eighty-six".