66846343 has 2 divisors, whose sum is σ = 66846344. Its totient is φ = 66846342.

The previous prime is 66846337. The next prime is 66846391. The reversal of 66846343 is 34364866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66846343 - 2¹³ = 66838151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66846296 and 66846305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66840343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33423171 + 33423172.

It is an arithmetic number, because the mean of its divisors is an integer number (33423172).

Almost surely, 2^66846343 is an apocalyptic number.

66846343 is a deficient number, since it is larger than the sum of its proper divisors (1).

66846343 is an equidigital number, since it uses as much as digits as its factorization.

66846343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 40.

The square root of 66846343 is about 8175.9612890473. The cubic root of 66846343 is about 405.8440821863.

The spelling of 66846343 in words is "sixty-six million, eight hundred forty-six thousand, three hundred forty-three".