80776808 has 32 divisors (see below), whose sum is σ = 175684800. Its totient is φ = 34100352.

The previous prime is 80776799. The next prime is 80776811. The reversal of 80776808 is 80867708.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 7013 + ... + 14516.

It is an arithmetic number, because the mean of its divisors is an integer number (5490150).

Almost surely, 2^80776808 is an apocalyptic number.

It is an amenable number.

80776808 is an abundant number, since it is smaller than the sum of its proper divisors (94907992).

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

80776808 is a wasteful number, since it uses less digits than its factorization.

80776808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21609 (or 21605 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 80776808 is about 8987.5918910462. The cubic root of 80776808 is about 432.2770998839.

The spelling of 80776808 in words is "eighty million, seven hundred seventy-six thousand, eight hundred eight".