43528099 has 2 divisors, whose sum is σ = 43528100. Its totient is φ = 43528098.

The previous prime is 43528097. The next prime is 43528139. The reversal of 43528099 is 99082534.

It is a happy number.

43528099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (43528139) can be obtained adding 43528099 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43528099 - 2¹ = 43528097 is a prime.

Together with 43528097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (43528097) 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 as a sum of consecutive naturals, namely, 21764049 + 21764050.

It is an arithmetic number, because the mean of its divisors is an integer number (21764050).

Almost surely, 2^43528099 is an apocalyptic number.

43528099 is a deficient number, since it is larger than the sum of its proper divisors (1).

43528099 is an equidigital number, since it uses as much as digits as its factorization.

43528099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 43528099 is about 6597.5828149406. The cubic root of 43528099 is about 351.7681922253.

The spelling of 43528099 in words is "forty-three million, five hundred twenty-eight thousand, ninety-nine".