66483729 has 12 divisors (see below), whose sum is σ = 103419316. Its totient is φ = 40912992.

The previous prime is 66483721. The next prime is 66483733. The reversal of 66483729 is 92738466.

It can be written as a sum of positive squares in 2 ways, for example, as 13950225 + 52533504 = 3735^2 + 7248^2 .

It is not a de Polignac number, because 66483729 - 2³ = 66483721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66483721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284002 + ... + 284235.

Almost surely, 2^66483729 is an apocalyptic number.

It is an amenable number.

66483729 is a deficient number, since it is larger than the sum of its proper divisors (36935587).

66483729 is a wasteful number, since it uses less digits than its factorization.

66483729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568256 (or 568253 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 66483729 is about 8153.7555150985. The cubic root of 66483729 is about 405.1089053261.

The spelling of 66483729 in words is "sixty-six million, four hundred eighty-three thousand, seven hundred twenty-nine".