66734683 has 2 divisors, whose sum is σ = 66734684. Its totient is φ = 66734682.

The previous prime is 66734663. The next prime is 66734687. The reversal of 66734683 is 38643766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66734683 - 2⁵ = 66734651 is a prime.

It is a super-2 number, since 2×66734683² = 8907035830220978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (66734687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33367341 + 33367342.

It is an arithmetic number, because the mean of its divisors is an integer number (33367342).

Almost surely, 2^66734683 is an apocalyptic number.

66734683 is a deficient number, since it is larger than the sum of its proper divisors (1).

66734683 is an equidigital number, since it uses as much as digits as its factorization.

66734683 is an evil number, because the sum of its binary digits is even.

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

The square root of 66734683 is about 8169.1298802259. The cubic root of 66734683 is about 405.6179825282.

The spelling of 66734683 in words is "sixty-six million, seven hundred thirty-four thousand, six hundred eighty-three".