79884811 has 4 divisors (see below), whose sum is σ = 80263624. Its totient is φ = 79506000.

The previous prime is 79884803. The next prime is 79884817. The reversal of 79884811 is 11848897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11848897 = 829 ⋅14293.

It is a cyclic number.

It is not a de Polignac number, because 79884811 - 2³ = 79884803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79884817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189090 + ... + 189511.

It is an arithmetic number, because the mean of its divisors is an integer number (20065906).

Almost surely, 2^79884811 is an apocalyptic number.

79884811 is a deficient number, since it is larger than the sum of its proper divisors (378813).

79884811 is a wasteful number, since it uses less digits than its factorization.

79884811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378812.

The product of its digits is 129024, while the sum is 46.

The square root of 79884811 is about 8937.8303295599. The cubic root of 79884811 is about 430.6800326883.

The spelling of 79884811 in words is "seventy-nine million, eight hundred eighty-four thousand, eight hundred eleven".