43098439 has 2 divisors, whose sum is σ = 43098440. Its totient is φ = 43098438.

The previous prime is 43098413. The next prime is 43098449. The reversal of 43098439 is 93489034.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43098439 - 2⁹ = 43097927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43098409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21549219 + 21549220.

It is an arithmetic number, because the mean of its divisors is an integer number (21549220).

Almost surely, 2^43098439 is an apocalyptic number.

43098439 is a deficient number, since it is larger than the sum of its proper divisors (1).

43098439 is an equidigital number, since it uses as much as digits as its factorization.

43098439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 43098439 is about 6564.9401368177. The cubic root of 43098439 is about 350.6069441528.

The spelling of 43098439 in words is "forty-three million, ninety-eight thousand, four hundred thirty-nine".