80993304 has 256 divisors, whose sum is σ = 286156800. Its totient is φ = 20680704.

The previous prime is 80993303. The next prime is 80993347. The reversal of 80993304 is 40339908.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80993303) 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 63 ways as a sum of consecutive naturals, for example, 591124 + ... + 591260.

It is an arithmetic number, because the mean of its divisors is an integer number (1117800).

Almost surely, 2^80993304 is an apocalyptic number.

80993304 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 80993304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143078400).

80993304 is an abundant number, since it is smaller than the sum of its proper divisors (205163496).

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

80993304 is a wasteful number, since it uses less digits than its factorization.

80993304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 80993304 is about 8999.6279923117. The cubic root of 80993304 is about 432.6629481672.

The spelling of 80993304 in words is "eighty million, nine hundred ninety-three thousand, three hundred four".