80817808 has 10 divisors (see below), whose sum is σ = 156584534. Its totient is φ = 40408896.

The previous prime is 80817761. The next prime is 80817829. The reversal of 80817808 is 80871808.

It can be written as a sum of positive squares in only one way, i.e., 72454144 + 8363664 = 8512^2 + 2892^2 .

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 as a sum of consecutive naturals, namely, 2525541 + ... + 2525572.

Almost surely, 2^80817808 is an apocalyptic number.

It is an amenable number.

80817808 is a deficient number, since it is larger than the sum of its proper divisors (75766726).

80817808 is a wasteful number, since it uses less digits than its factorization.

80817808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051121 (or 5051115 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 40.

The square root of 80817808 is about 8989.8725241240. The cubic root of 80817808 is about 432.3502246820.

The spelling of 80817808 in words is "eighty million, eight hundred seventeen thousand, eight hundred eight".