43234993 has 2 divisors, whose sum is σ = 43234994. Its totient is φ = 43234992.

The previous prime is 43234979. The next prime is 43235011. The reversal of 43234993 is 39943234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32626944 + 10608049 = 5712^2 + 3257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43234993 is a prime.

It is not a weakly prime, because it can be changed into another prime (43234943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21617496 + 21617497.

It is an arithmetic number, because the mean of its divisors is an integer number (21617497).

Almost surely, 2^43234993 is an apocalyptic number.

It is an amenable number.

43234993 is a deficient number, since it is larger than the sum of its proper divisors (1).

43234993 is an equidigital number, since it uses as much as digits as its factorization.

43234993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 37.

The square root of 43234993 is about 6575.3321589103. The cubic root of 43234993 is about 350.9768438984.

It can be divided in two parts, 4323 and 4993, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 43234993 in words is "forty-three million, two hundred thirty-four thousand, nine hundred ninety-three".