66837343 has 2 divisors, whose sum is σ = 66837344. Its totient is φ = 66837342.

The previous prime is 66837317. The next prime is 66837359. The reversal of 66837343 is 34373866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66837343 - 2⁹ = 66836831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66837296 and 66837305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66837143) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33418671 + 33418672.

It is an arithmetic number, because the mean of its divisors is an integer number (33418672).

Almost surely, 2^66837343 is an apocalyptic number.

66837343 is a deficient number, since it is larger than the sum of its proper divisors (1).

66837343 is an equidigital number, since it uses as much as digits as its factorization.

66837343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 40.

The square root of 66837343 is about 8175.4108765248. The cubic root of 66837343 is about 405.8258674742.

The spelling of 66837343 in words is "sixty-six million, eight hundred thirty-seven thousand, three hundred forty-three".