43128823 has 8 divisors (see below), whose sum is σ = 44254800. Its totient is φ = 42016128.

The previous prime is 43128817. The next prime is 43128857. The reversal of 43128823 is 32882134.

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-43128823 is a prime.

It is a super-3 number, since 3×43128823³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43128863) 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, 3433 + ... + 9901.

It is an arithmetic number, because the mean of its divisors is an integer number (5531850).

Almost surely, 2^43128823 is an apocalyptic number.

43128823 is a deficient number, since it is larger than the sum of its proper divisors (1125977).

43128823 is a wasteful number, since it uses less digits than its factorization.

43128823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641.

The product of its digits is 9216, while the sum is 31.

The square root of 43128823 is about 6567.2538400765. The cubic root of 43128823 is about 350.6893163472.

The spelling of 43128823 in words is "forty-three million, one hundred twenty-eight thousand, eight hundred twenty-three".