80329999 has 2 divisors, whose sum is σ = 80330000. Its totient is φ = 80329998.

The previous prime is 80329987. The next prime is 80330011. The reversal of 80329999 is 99992308.

It is a balanced prime because it is at equal distance from previous prime (80329987) and next prime (80330011).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80329999 is a prime.

It is a Chen prime.

80329999 is a modest number, since divided by 9999 gives 8032 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80329919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40164999 + 40165000.

It is an arithmetic number, because the mean of its divisors is an integer number (40165000).

Almost surely, 2^80329999 is an apocalyptic number.

80329999 is a deficient number, since it is larger than the sum of its proper divisors (1).

80329999 is an equidigital number, since it uses as much as digits as its factorization.

80329999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 49.

The square root of 80329999 is about 8962.7004301159. The cubic root of 80329999 is about 431.4785929719.

The spelling of 80329999 in words is "eighty million, three hundred twenty-nine thousand, nine hundred ninety-nine".