80844111 has 24 divisors (see below), whose sum is σ = 118619280. Its totient is φ = 53053056.

The previous prime is 80844109. The next prime is 80844121. The reversal of 80844111 is 11144808.

It is not a de Polignac number, because 80844111 - 2¹ = 80844109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80844121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213120 + ... + 213498.

It is an arithmetic number, because the mean of its divisors is an integer number (4942470).

Almost surely, 2^80844111 is an apocalyptic number.

80844111 is a deficient number, since it is larger than the sum of its proper divisors (37775169).

80844111 is a wasteful number, since it uses less digits than its factorization.

80844111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 80844111 is about 8991.3353290821. The cubic root of 80844111 is about 432.3971238937.

Adding to 80844111 its reverse (11144808), we get a palindrome (91988919).

The spelling of 80844111 in words is "eighty million, eight hundred forty-four thousand, one hundred eleven".