79830542 has 16 divisors (see below), whose sum is σ = 130906800. Its totient is φ = 36210240.

The previous prime is 79830523. The next prime is 79830557. The reversal of 79830542 is 24503897.

It is a junction number, because it is equal to n+sod(n) for n = 79830496 and 79830505.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7634 + ... + 14762.

It is an arithmetic number, because the mean of its divisors is an integer number (8181675).

Almost surely, 2^79830542 is an apocalyptic number.

79830542 is a deficient number, since it is larger than the sum of its proper divisors (51076258).

79830542 is a wasteful number, since it uses less digits than its factorization.

79830542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7651.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 79830542 is about 8934.7938980147. The cubic root of 79830542 is about 430.5824844433.

The spelling of 79830542 in words is "seventy-nine million, eight hundred thirty thousand, five hundred forty-two".