80704819 has 8 divisors (see below), whose sum is σ = 87490592. Its totient is φ = 74001600.

The previous prime is 80704739. The next prime is 80704843. The reversal of 80704819 is 91840708.

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 80704819 - 2⁷ = 80704691 is a prime.

It is a super-2 number, since 2×80704819² = 13026535619645522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80702819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18594 + ... + 22519.

It is an arithmetic number, because the mean of its divisors is an integer number (10936324).

Almost surely, 2^80704819 is an apocalyptic number.

80704819 is a deficient number, since it is larger than the sum of its proper divisors (6785773).

80704819 is a wasteful number, since it uses less digits than its factorization.

80704819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41277.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 80704819 is about 8983.5860879718. The cubic root of 80704819 is about 432.1486453351.

The spelling of 80704819 in words is "eighty million, seven hundred four thousand, eight hundred nineteen".