80369719 has 4 divisors (see below), whose sum is σ = 80437840. Its totient is φ = 80301600.

The previous prime is 80369699. The next prime is 80369743. The reversal of 80369719 is 91796308.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80369719 - 2⁵ = 80369687 is a prime.

It is a super-2 number, since 2×80369719² = 12918583464277922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80369119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32259 + ... + 34660.

It is an arithmetic number, because the mean of its divisors is an integer number (20109460).

Almost surely, 2^80369719 is an apocalyptic number.

80369719 is a deficient number, since it is larger than the sum of its proper divisors (68121).

80369719 is a wasteful number, since it uses less digits than its factorization.

80369719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68120.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 80369719 is about 8964.9160062992. The cubic root of 80369719 is about 431.5496976067.

The spelling of 80369719 in words is "eighty million, three hundred sixty-nine thousand, seven hundred nineteen".