80347919 has 8 divisors (see below), whose sum is σ = 81825120. Its totient is φ = 78876000.

The previous prime is 80347873. The next prime is 80347937. The reversal of 80347919 is 91974308.

It is a happy number.

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 80347919 - 2¹⁶ = 80282383 is a prime.

It is a super-2 number, since 2×80347919² = 12911576175261122, 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 (80347999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41822 + ... + 43700.

It is an arithmetic number, because the mean of its divisors is an integer number (10228140).

Almost surely, 2^80347919 is an apocalyptic number.

80347919 is a deficient number, since it is larger than the sum of its proper divisors (1477201).

80347919 is a wasteful number, since it uses less digits than its factorization.

80347919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 80347919 is about 8963.7000730725. The cubic root of 80347919 is about 431.5106753055.

The spelling of 80347919 in words is "eighty million, three hundred forty-seven thousand, nine hundred nineteen".