80307999 has 12 divisors (see below), whose sum is σ = 116079912. Its totient is φ = 53502000.

The previous prime is 80307979. The next prime is 80308013. The reversal of 80307999 is 99970308.

It is a happy number.

It is not a de Polignac number, because 80307999 - 2¹⁷ = 80176927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80307919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19849 + ... + 23549.

It is an arithmetic number, because the mean of its divisors is an integer number (9673326).

Almost surely, 2^80307999 is an apocalyptic number.

80307999 is a deficient number, since it is larger than the sum of its proper divisors (35771913).

80307999 is a wasteful number, since it uses less digits than its factorization.

80307999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6118 (or 6115 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 80307999 is about 8961.4730373974. The cubic root of 80307999 is about 431.4391996532.

The spelling of 80307999 in words is "eighty million, three hundred seven thousand, nine hundred ninety-nine".