100487 has 8 divisors (see below), whose sum is σ = 111456. Its totient is φ = 90112.

The previous prime is 100483. The next prime is 100493. The reversal of 100487 is 784001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100487 - 2² = 100483 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263 + ... + 519.

It is an arithmetic number, because the mean of its divisors is an integer number (13932).

2¹⁰⁰⁴⁸⁷ is an apocalyptic number.

100487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

100487 is a deficient number, since it is larger than the sum of its proper divisors (10969).

100487 is a wasteful number, since it uses less digits than its factorization.

100487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

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

The square root of 100487 is about 316.9968454102. The cubic root of 100487 is about 46.4911148091.

Adding to 100487 its reverse (784001), we get a palindrome (884488).

The spelling of 100487 in words is "one hundred thousand, four hundred eighty-seven".