80577828 has 96 divisors (see below), whose sum is σ = 216375040. Its totient is φ = 26244000.

The previous prime is 80577821. The next prime is 80577869. The reversal of 80577828 is 82877508.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80577821) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 533553 + ... + 533703.

Almost surely, 2^80577828 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 80577828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108187520).

80577828 is an abundant number, since it is smaller than the sum of its proper divisors (135797212).

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

80577828 is a wasteful number, since it uses less digits than its factorization.

80577828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The square root of 80577828 is about 8976.5153595368. The cubic root of 80577828 is about 431.9218608672.

The spelling of 80577828 in words is "eighty million, five hundred seventy-seven thousand, eight hundred twenty-eight".