43914589 has 2 divisors, whose sum is σ = 43914590. Its totient is φ = 43914588.

The previous prime is 43914557. The next prime is 43914667. The reversal of 43914589 is 98541934.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28836900 + 15077689 = 5370^2 + 3883^2 .

It is a cyclic number.

It is not a de Polignac number, because 43914589 - 2⁵ = 43914557 is a prime.

It is a super-2 number, since 2×43914589² = 3856982254077842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43914539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21957294 + 21957295.

It is an arithmetic number, because the mean of its divisors is an integer number (21957295).

Almost surely, 2^43914589 is an apocalyptic number.

It is an amenable number.

43914589 is a deficient number, since it is larger than the sum of its proper divisors (1).

43914589 is an equidigital number, since it uses as much as digits as its factorization.

43914589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 43.

The square root of 43914589 is about 6626.8083569694. The cubic root of 43914589 is about 352.8062533064.

The spelling of 43914589 in words is "forty-three million, nine hundred fourteen thousand, five hundred eighty-nine".