80716643 has 8 divisors (see below), whose sum is σ = 92396640. Its totient is φ = 69073920.

The previous prime is 80716619. The next prime is 80716673. The reversal of 80716643 is 34661708.

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 80716643 - 2²² = 76522339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80716673) 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, 4508 + ... + 13481.

It is an arithmetic number, because the mean of its divisors is an integer number (11549580).

Almost surely, 2^80716643 is an apocalyptic number.

80716643 is a deficient number, since it is larger than the sum of its proper divisors (11679997).

80716643 is a wasteful number, since it uses less digits than its factorization.

80716643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18637.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 80716643 is about 8984.2441529602. The cubic root of 80716643 is about 432.1697488913.

The spelling of 80716643 in words is "eighty million, seven hundred sixteen thousand, six hundred forty-three".