43625789 has 2 divisors, whose sum is σ = 43625790. Its totient is φ = 43625788.

The previous prime is 43625761. The next prime is 43625807. The reversal of 43625789 is 98752634.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23600164 + 20025625 = 4858^2 + 4475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43625789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43621789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21812894 + 21812895.

It is an arithmetic number, because the mean of its divisors is an integer number (21812895).

Almost surely, 2^43625789 is an apocalyptic number.

It is an amenable number.

43625789 is a deficient number, since it is larger than the sum of its proper divisors (1).

43625789 is an equidigital number, since it uses as much as digits as its factorization.

43625789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The square root of 43625789 is about 6604.9821347222. The cubic root of 43625789 is about 352.0311530839.

The spelling of 43625789 in words is "forty-three million, six hundred twenty-five thousand, seven hundred eighty-nine".