79960219 has 4 divisors (see below), whose sum is σ = 82121344. Its totient is φ = 77799096.

The previous prime is 79960217. The next prime is 79960229. The reversal of 79960219 is 91206997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91206997 = 7 ⋅13029571.

It is a cyclic number.

It is not a de Polignac number, because 79960219 - 2¹ = 79960217 is a prime.

It is a super-2 number, since 2×79960219² = 12787273245055922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79960217) 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 3 ways as a sum of consecutive naturals, for example, 1080507 + ... + 1080580.

It is an arithmetic number, because the mean of its divisors is an integer number (20530336).

Almost surely, 2^79960219 is an apocalyptic number.

79960219 is a deficient number, since it is larger than the sum of its proper divisors (2161125).

79960219 is a wasteful number, since it uses less digits than its factorization.

79960219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161124.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 79960219 is about 8942.0478079688. The cubic root of 79960219 is about 430.8155048594.

The spelling of 79960219 in words is "seventy-nine million, nine hundred sixty thousand, two hundred nineteen".