79530066 has 128 divisors (see below), whose sum is σ = 227819520. Its totient is φ = 19958400.

The previous prime is 79530049. The next prime is 79530071. The reversal of 79530066 is 66003597.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79530066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 128590 + ... + 129206.

It is an arithmetic number, because the mean of its divisors is an integer number (1779840).

Almost surely, 2^79530066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79530066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113909760).

79530066 is an abundant number, since it is smaller than the sum of its proper divisors (148289454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79530066 is a wasteful number, since it uses less digits than its factorization.

79530066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 79530066 is about 8917.9631082439. The cubic root of 79530066 is about 430.0415788170.

The spelling of 79530066 in words is "seventy-nine million, five hundred thirty thousand, sixty-six".