80011579 has 4 divisors (see below), whose sum is σ = 80088760. Its totient is φ = 79934400.

The previous prime is 80011573. The next prime is 80011643. The reversal of 80011579 is 97511008.

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

It is a cyclic number.

It is not a de Polignac number, because 80011579 - 2⁹ = 80011067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80011579.

It is not an unprimeable number, because it can be changed into a prime (80011573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37014 + ... + 39115.

It is an arithmetic number, because the mean of its divisors is an integer number (20022190).

Almost surely, 2^80011579 is an apocalyptic number.

80011579 is a deficient number, since it is larger than the sum of its proper divisors (77181).

80011579 is a wasteful number, since it uses less digits than its factorization.

80011579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77180.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 80011579 is about 8944.9191723570. The cubic root of 80011579 is about 430.9077255029.

The spelling of 80011579 in words is "eighty million, eleven thousand, five hundred seventy-nine".