43087728 has 40 divisors (see below), whose sum is σ = 113416848. Its totient is φ = 14090752.

The previous prime is 43087727. The next prime is 43087729. The reversal of 43087728 is 82778034.

43087728 is nontrivially palindromic in base 13.

43087728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (43087727) and next prime (43087729).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43087727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5925 + ... + 11012.

Almost surely, 2^43087728 is an apocalyptic number.

43087728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

43087728 is an abundant number, since it is smaller than the sum of its proper divisors (70329120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43087728 is a wasteful number, since it uses less digits than its factorization.

43087728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17001 (or 16995 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 43087728 is about 6564.1243132653. The cubic root of 43087728 is about 350.5778969900.

The spelling of 43087728 in words is "forty-three million, eighty-seven thousand, seven hundred twenty-eight".