100002087 has 8 divisors (see below), whose sum is σ = 148151280. Its totient is φ = 66668040.

The previous prime is 100002059. The next prime is 100002103. The reversal of 100002087 is 780200001.

It is not a de Polignac number, because 100002087 - 2¹¹ = 100000039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100002017) 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 7 ways as a sum of consecutive naturals, for example, 1851864 + ... + 1851917.

It is an arithmetic number, because the mean of its divisors is an integer number (18518910).

Almost surely, 2^100002087 is an apocalyptic number.

100002087 is a deficient number, since it is larger than the sum of its proper divisors (48149193).

100002087 is an equidigital number, since it uses as much as digits as its factorization.

100002087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703790 (or 3703784 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 100002087 is about 10000.1043494556. The cubic root of 100002087 is about 464.1621123374.

Adding to 100002087 its reverse (780200001), we get a palindrome (880202088).

The spelling of 100002087 in words is "one hundred million, two thousand, eighty-seven".