66829683 has 4 divisors (see below), whose sum is σ = 89106248. Its totient is φ = 44553120.

The previous prime is 66829657. The next prime is 66829699. The reversal of 66829683 is 38692866.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 66829683 - 2⁹ = 66829171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66829603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11138278 + ... + 11138283.

It is an arithmetic number, because the mean of its divisors is an integer number (22276562).

Almost surely, 2^66829683 is an apocalyptic number.

66829683 is a deficient number, since it is larger than the sum of its proper divisors (22276565).

66829683 is a wasteful number, since it uses less digits than its factorization.

66829683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22276564.

The product of its digits is 746496, while the sum is 48.

The square root of 66829683 is about 8174.9423851181. The cubic root of 66829683 is about 405.8103634422.

The spelling of 66829683 in words is "sixty-six million, eight hundred twenty-nine thousand, six hundred eighty-three".