80640299 has 8 divisors (see below), whose sum is σ = 85539888. Its totient is φ = 75758080.

The previous prime is 80640281. The next prime is 80640337. The reversal of 80640299 is 99204608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80640299 - 2¹² = 80636203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80640239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5939 + ... + 14019.

It is an arithmetic number, because the mean of its divisors is an integer number (10692486).

Almost surely, 2^80640299 is an apocalyptic number.

80640299 is a deficient number, since it is larger than the sum of its proper divisors (4899589).

80640299 is a wasteful number, since it uses less digits than its factorization.

80640299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 80640299 is about 8979.9943763902. The cubic root of 80640299 is about 432.0334532707.

The spelling of 80640299 in words is "eighty million, six hundred forty thousand, two hundred ninety-nine".