66028713 has 8 divisors (see below), whose sum is σ = 88224000. Its totient is φ = 43926288.

The previous prime is 66028691. The next prime is 66028723. The reversal of 66028713 is 31782066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66028713 - 2⁵ = 66028681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66028723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21538 + ... + 24411.

It is an arithmetic number, because the mean of its divisors is an integer number (11028000).

Almost surely, 2^66028713 is an apocalyptic number.

It is an amenable number.

66028713 is a deficient number, since it is larger than the sum of its proper divisors (22195287).

66028713 is a wasteful number, since it uses less digits than its factorization.

66028713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46431.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 66028713 is about 8125.8053754689. The cubic root of 66028713 is about 404.1825976692.

The spelling of 66028713 in words is "sixty-six million, twenty-eight thousand, seven hundred thirteen".