80719199 has 4 divisors (see below), whose sum is σ = 88057320. Its totient is φ = 73381080.

The previous prime is 80719193. The next prime is 80719253. The reversal of 80719199 is 99191708.

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 80719199 - 2²⁰ = 79670623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80719193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3669044 + ... + 3669065.

It is an arithmetic number, because the mean of its divisors is an integer number (22014330).

Almost surely, 2^80719199 is an apocalyptic number.

80719199 is a deficient number, since it is larger than the sum of its proper divisors (7338121).

80719199 is a wasteful number, since it uses less digits than its factorization.

80719199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7338120.

The product of its (nonzero) digits is 40824, while the sum is 44.

The square root of 80719199 is about 8984.3864008623. The cubic root of 80719199 is about 432.1743105867.

The spelling of 80719199 in words is "eighty million, seven hundred nineteen thousand, one hundred ninety-nine".