79730666 has 16 divisors (see below), whose sum is σ = 121102080. Its totient is φ = 39366000.

The previous prime is 79730641. The next prime is 79730699. The reversal of 79730666 is 66603797.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105791 + ... + 106541.

It is an arithmetic number, because the mean of its divisors is an integer number (7568880).

Almost surely, 2^79730666 is an apocalyptic number.

79730666 is a deficient number, since it is larger than the sum of its proper divisors (41371414).

79730666 is a wasteful number, since it uses less digits than its factorization.

79730666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349.

The product of its (nonzero) digits is 285768, while the sum is 44.

The square root of 79730666 is about 8929.2029879491. The cubic root of 79730666 is about 430.4028422409.

The spelling of 79730666 in words is "seventy-nine million, seven hundred thirty thousand, six hundred sixty-six".