79872199 has 8 divisors (see below), whose sum is σ = 89160192. Its totient is φ = 70922040.

The previous prime is 79872193. The next prime is 79872209. The reversal of 79872199 is 99127897.

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 79872199 - 2¹¹ = 79870151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79872193) 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 7 ways as a sum of consecutive naturals, for example, 83959 + ... + 84904.

It is an arithmetic number, because the mean of its divisors is an integer number (11145024).

Almost surely, 2^79872199 is an apocalyptic number.

79872199 is a deficient number, since it is larger than the sum of its proper divisors (9287993).

79872199 is a wasteful number, since it uses less digits than its factorization.

79872199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168917.

The product of its digits is 571536, while the sum is 52.

The square root of 79872199 is about 8937.1247613536. The cubic root of 79872199 is about 430.6573666254.

It can be divided in two parts, 79 and 872199, that added together give a palindrome (872278).

The spelling of 79872199 in words is "seventy-nine million, eight hundred seventy-two thousand, one hundred ninety-nine".