80859744 has 144 divisors (see below), whose sum is σ = 276756480. Its totient is φ = 21876480.

The previous prime is 80859707. The next prime is 80859761. The reversal of 80859744 is 44795808.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 80859744.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37249 + ... + 39359.

It is an arithmetic number, because the mean of its divisors is an integer number (1921920).

Almost surely, 2^80859744 is an apocalyptic number.

80859744 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80859744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138378240).

80859744 is an abundant number, since it is smaller than the sum of its proper divisors (195896736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80859744 is a wasteful number, since it uses less digits than its factorization.

80859744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153 (or 2142 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 80859744 is about 8992.2046240063. The cubic root of 80859744 is about 432.4249932853.

The spelling of 80859744 in words is "eighty million, eight hundred fifty-nine thousand, seven hundred forty-four".