79830102 has 64 divisors (see below), whose sum is σ = 186126336. Its totient is φ = 22582560.

The previous prime is 79830071. The next prime is 79830103. The reversal of 79830102 is 20103897.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 79830102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79830103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64663 + ... + 65885.

It is an arithmetic number, because the mean of its divisors is an integer number (2908224).

Almost surely, 2^79830102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79830102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93063168).

79830102 is an abundant number, since it is smaller than the sum of its proper divisors (106296234).

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

79830102 is a wasteful number, since it uses less digits than its factorization.

79830102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 79830102 is about 8934.7692751408. The cubic root of 79830102 is about 430.5816933649.

Adding to 79830102 its reverse (20103897), we get a palindrome (99933999).

The spelling of 79830102 in words is "seventy-nine million, eight hundred thirty thousand, one hundred two".