80816996 has 12 divisors (see below), whose sum is σ = 152309052. Its totient is φ = 37300128.

The previous prime is 80816987. The next prime is 80817029. The reversal of 80816996 is 69961808.

It can be written as a sum of positive squares in 2 ways, for example, as 4778596 + 76038400 = 2186^2 + 8720^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80816996.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777035 + ... + 777138.

It is an arithmetic number, because the mean of its divisors is an integer number (12692421).

Almost surely, 2^80816996 is an apocalyptic number.

It is an amenable number.

80816996 is a deficient number, since it is larger than the sum of its proper divisors (71492056).

80816996 is a wasteful number, since it uses less digits than its factorization.

80816996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554190 (or 1554188 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 80816996 is about 8989.8273620799. The cubic root of 80816996 is about 432.3487766943.

The spelling of 80816996 in words is "eighty million, eight hundred sixteen thousand, nine hundred ninety-six".