79700066 has 8 divisors (see below), whose sum is σ = 119670480. Its totient is φ = 39809908.

The previous prime is 79700059. The next prime is 79700077. The reversal of 79700066 is 66000797.

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

It is a junction number, because it is equal to n+sod(n) for n = 79699999 and 79700035.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17516 + ... + 21591.

It is an arithmetic number, because the mean of its divisors is an integer number (14958810).

Almost surely, 2^79700066 is an apocalyptic number.

79700066 is a deficient number, since it is larger than the sum of its proper divisors (39970414).

79700066 is a wasteful number, since it uses less digits than its factorization.

79700066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40128.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 79700066 is about 8927.4893447150. The cubic root of 79700066 is about 430.3477734579.

The spelling of 79700066 in words is "seventy-nine million, seven hundred thousand, sixty-six".