80745984 has 240 divisors, whose sum is σ = 268107840. Its totient is φ = 24053760.

The previous prime is 80745967. The next prime is 80746009. The reversal of 80745984 is 48954708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1368547 + ... + 1368605.

It is an arithmetic number, because the mean of its divisors is an integer number (1117116).

Almost surely, 2^80745984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80745984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134053920).

80745984 is an abundant number, since it is smaller than the sum of its proper divisors (187361856).

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

80745984 is an equidigital number, since it uses as much as digits as its factorization.

80745984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 75 counting only the distinct ones).

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

The square root of 80745984 is about 8985.8769188099. The cubic root of 80745984 is about 432.2221080083. Note that the first 3 decimals are identical.

The spelling of 80745984 in words is "eighty million, seven hundred forty-five thousand, nine hundred eighty-four".