43498493 has 2 divisors, whose sum is σ = 43498494. Its totient is φ = 43498492.

The previous prime is 43498471. The next prime is 43498501. The reversal of 43498493 is 39489434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35557369 + 7941124 = 5963^2 + 2818^2 .

It is a cyclic number.

It is not a de Polignac number, because 43498493 - 2¹⁶ = 43432957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43498093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21749246 + 21749247.

It is an arithmetic number, because the mean of its divisors is an integer number (21749247).

Almost surely, 2^43498493 is an apocalyptic number.

It is an amenable number.

43498493 is a deficient number, since it is larger than the sum of its proper divisors (1).

43498493 is an equidigital number, since it uses as much as digits as its factorization.

43498493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The square root of 43498493 is about 6595.3387327718. The cubic root of 43498493 is about 351.6884214459.

The spelling of 43498493 in words is "forty-three million, four hundred ninety-eight thousand, four hundred ninety-three".