80284111 has 4 divisors (see below), whose sum is σ = 80628912. Its totient is φ = 79939312.

The previous prime is 80284103. The next prime is 80284121. The reversal of 80284111 is 11148208.

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 80284111 - 2³ = 80284103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80284121) 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, 172051 + ... + 172516.

It is an arithmetic number, because the mean of its divisors is an integer number (20157228).

Almost surely, 2^80284111 is an apocalyptic number.

80284111 is a deficient number, since it is larger than the sum of its proper divisors (344801).

80284111 is a wasteful number, since it uses less digits than its factorization.

80284111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344800.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 80284111 is about 8960.1401216722. The cubic root of 80284111 is about 431.3964175236.

The spelling of 80284111 in words is "eighty million, two hundred eighty-four thousand, one hundred eleven".