79238109 has 8 divisors (see below), whose sum is σ = 106241760. Its totient is φ = 52529936.

The previous prime is 79238087. The next prime is 79238119. The reversal of 79238109 is 90183297.

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

It is a cyclic number.

It is not a de Polignac number, because 79238109 - 2⁷ = 79237981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79238119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73242 + ... + 74315.

It is an arithmetic number, because the mean of its divisors is an integer number (13280220).

Almost surely, 2^79238109 is an apocalyptic number.

It is an amenable number.

79238109 is a deficient number, since it is larger than the sum of its proper divisors (27003651).

79238109 is a wasteful number, since it uses less digits than its factorization.

79238109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147739.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 79238109 is about 8901.5790172306. The cubic root of 79238109 is about 429.5147021837.

The spelling of 79238109 in words is "seventy-nine million, two hundred thirty-eight thousand, one hundred nine".