79184081 has 4 divisors (see below), whose sum is σ = 79249332. Its totient is φ = 79118832.

The previous prime is 79184071. The next prime is 79184089. The reversal of 79184081 is 18048197.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73685056 + 5499025 = 8584^2 + 2345^2 .

It is a cyclic number.

It is not a de Polignac number, because 79184081 - 2¹⁰ = 79183057 is a prime.

It is a super-2 number, since 2×79184081² = 12540237367629122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79184089) 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, 30770 + ... + 33243.

It is an arithmetic number, because the mean of its divisors is an integer number (19812333).

Almost surely, 2^79184081 is an apocalyptic number.

It is an amenable number.

79184081 is a deficient number, since it is larger than the sum of its proper divisors (65251).

79184081 is a wasteful number, since it uses less digits than its factorization.

79184081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65250.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 79184081 is about 8898.5437572673. The cubic root of 79184081 is about 429.4170593665.

The spelling of 79184081 in words is "seventy-nine million, one hundred eighty-four thousand, eighty-one".