43232089 has 2 divisors, whose sum is σ = 43232090. Its totient is φ = 43232088.

The previous prime is 43232053. The next prime is 43232099. The reversal of 43232089 is 98023234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23116864 + 20115225 = 4808^2 + 4485^2 .

It is a cyclic number.

It is not a de Polignac number, because 43232089 - 2²¹ = 41134937 is a prime.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 43232089.

It is not a weakly prime, because it can be changed into another prime (43232009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21616044 + 21616045.

It is an arithmetic number, because the mean of its divisors is an integer number (21616045).

Almost surely, 2^43232089 is an apocalyptic number.

It is an amenable number.

43232089 is a deficient number, since it is larger than the sum of its proper divisors (1).

43232089 is an equidigital number, since it uses as much as digits as its factorization.

43232089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 43232089 is about 6575.1113298559. Note that the first 3 decimals coincide. The cubic root of 43232089 is about 350.9689856066.

The spelling of 43232089 in words is "forty-three million, two hundred thirty-two thousand, eighty-nine".