80732219 has 4 divisors (see below), whose sum is σ = 82055760. Its totient is φ = 79408680.

The previous prime is 80732213. The next prime is 80732243. The reversal of 80732219 is 91223708.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80732219 is a prime.

It is a super-2 number, since 2×80732219² = 13035382369327922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80732213) 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, 661679 + ... + 661800.

It is an arithmetic number, because the mean of its divisors is an integer number (20513940).

Almost surely, 2^80732219 is an apocalyptic number.

80732219 is a deficient number, since it is larger than the sum of its proper divisors (1323541).

80732219 is a wasteful number, since it uses less digits than its factorization.

80732219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323540.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 80732219 is about 8985.1109620305. The cubic root of 80732219 is about 432.1975458974.

The spelling of 80732219 in words is "eighty million, seven hundred thirty-two thousand, two hundred nineteen".