80784732 has 96 divisors (see below), whose sum is σ = 231616000. Its totient is φ = 21845376.

The previous prime is 80784707. The next prime is 80784733. The reversal of 80784732 is 23748708.

It is a super-5 number, since 5×80784732⁵ (a number of 41 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80784733) 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 31 ways as a sum of consecutive naturals, for example, 77688 + ... + 78720.

Almost surely, 2^80784732 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 80784732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115808000).

80784732 is an abundant number, since it is smaller than the sum of its proper divisors (150831268).

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

80784732 is a wasteful number, since it uses less digits than its factorization.

80784732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 80784732 is about 8988.0327102209. The cubic root of 80784732 is about 432.2912345175.

The spelling of 80784732 in words is "eighty million, seven hundred eighty-four thousand, seven hundred thirty-two".