66047873 has 8 divisors (see below), whose sum is σ = 70087680. Its totient is φ = 62025280.

The previous prime is 66047851. The next prime is 66047893. The reversal of 66047873 is 37874066.

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

It is a cyclic number.

It is not a de Polignac number, because 66047873 - 2⁶ = 66047809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66047873.

It is not an unprimeable number, because it can be changed into a prime (66047803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4088 + ... + 12198.

It is an arithmetic number, because the mean of its divisors is an integer number (8760960).

Almost surely, 2^66047873 is an apocalyptic number.

It is an amenable number.

66047873 is a deficient number, since it is larger than the sum of its proper divisors (4039807).

66047873 is a wasteful number, since it uses less digits than its factorization.

66047873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8607.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 66047873 is about 8126.9842500155. The cubic root of 66047873 is about 404.2216886913.

The spelling of 66047873 in words is "sixty-six million, forty-seven thousand, eight hundred seventy-three".