104543987 has 8 divisors (see below), whose sum is σ = 105701376. Its totient is φ = 103392072.

The previous prime is 104543977. The next prime is 104544001. The reversal of 104543987 is 789345401.

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 104543987 - 2¹⁸ = 104281843 is a prime.

It is a super-3 number, since 3×104543987³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104543917) 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, 45488 + ... + 47730.

It is an arithmetic number, because the mean of its divisors is an integer number (13212672).

Almost surely, 2^104543987 is an apocalyptic number.

104543987 is a deficient number, since it is larger than the sum of its proper divisors (1157389).

104543987 is a wasteful number, since it uses less digits than its factorization.

104543987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 104543987 is about 10224.6753982706. The cubic root of 104543987 is about 471.0854451060.

It can be divided in two parts, 10454 and 3987, that added together give a palindrome (14441).

The spelling of 104543987 in words is "one hundred four million, five hundred forty-three thousand, nine hundred eighty-seven".