80444799 has 16 divisors (see below), whose sum is σ = 126188640. Its totient is φ = 50474880.

The previous prime is 80444761. The next prime is 80444821. The reversal of 80444799 is 99744408.

It is not a de Polignac number, because 80444799 - 2²³ = 72056191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80444729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87172 + ... + 88089.

It is an arithmetic number, because the mean of its divisors is an integer number (7886790).

Almost surely, 2^80444799 is an apocalyptic number.

80444799 is a deficient number, since it is larger than the sum of its proper divisors (45743841).

80444799 is a wasteful number, since it uses less digits than its factorization.

80444799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175287 (or 175281 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 80444799 is about 8969.1024634575. The cubic root of 80444799 is about 431.6840378679.

It can be divided in two parts, 804447 and 99, that added together give a triangular number (804546 = T₁₂₆₈).

The spelling of 80444799 in words is "eighty million, four hundred forty-four thousand, seven hundred ninety-nine".