80716719 has 16 divisors (see below), whose sum is σ = 112476672. Its totient is φ = 51437568.

The previous prime is 80716717. The next prime is 80716723. The reversal of 80716719 is 91761708.

It is not a de Polignac number, because 80716719 - 2¹ = 80716717 is a prime.

It is a super-2 number, since 2×80716719² = 13030377452249922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80716717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594 + ... + 12719.

It is an arithmetic number, because the mean of its divisors is an integer number (7029792).

Almost surely, 2^80716719 is an apocalyptic number.

80716719 is a deficient number, since it is larger than the sum of its proper divisors (31759953).

80716719 is a wasteful number, since it uses less digits than its factorization.

80716719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13406.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 80716719 is about 8984.2483825860. The cubic root of 80716719 is about 432.1698845300.

The spelling of 80716719 in words is "eighty million, seven hundred sixteen thousand, seven hundred nineteen".