66876343 has 2 divisors, whose sum is σ = 66876344. Its totient is φ = 66876342.

The previous prime is 66876311. The next prime is 66876367. The reversal of 66876343 is 34367866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66876343 - 2⁵ = 66876311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66876343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66876373) 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, 33438171 + 33438172.

It is an arithmetic number, because the mean of its divisors is an integer number (33438172).

Almost surely, 2^66876343 is an apocalyptic number.

66876343 is a deficient number, since it is larger than the sum of its proper divisors (1).

66876343 is an equidigital number, since it uses as much as digits as its factorization.

66876343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 43.

The square root of 66876343 is about 8177.7957299018. The cubic root of 66876343 is about 405.9047860881.

The spelling of 66876343 in words is "sixty-six million, eight hundred seventy-six thousand, three hundred forty-three".