43000087 has 8 divisors (see below), whose sum is σ = 48321504. Its totient is φ = 37966368.

The previous prime is 43000081. The next prime is 43000093. The reversal of 43000087 is 78000034.

It is an interprime number because it is at equal distance from previous prime (43000081) and next prime (43000093).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43000087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43000081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71608 + ... + 72205.

It is an arithmetic number, because the mean of its divisors is an integer number (6040188).

Almost surely, 2^43000087 is an apocalyptic number.

43000087 is a deficient number, since it is larger than the sum of its proper divisors (5321417).

43000087 is a wasteful number, since it uses less digits than its factorization.

43000087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143849.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 43000087 is about 6557.4451579865. The cubic root of 43000087 is about 350.3400423142.

Adding to 43000087 its reverse (78000034), we get a palindrome (121000121).

The spelling of 43000087 in words is "forty-three million, eighty-seven", and thus it is an aban number and an uban number.