1720080005 has 8 divisors (see below), whose sum is σ = 2358966912. Its totient is φ = 1179483408.

The previous prime is 1720079983. The next prime is 1720080029. The reversal of 1720080005 is 5000800271.

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 1720080005 - 2⁸ = 1720079749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24572537 + ... + 24572606.

It is an arithmetic number, because the mean of its divisors is an integer number (294870864).

Almost surely, 2^1720080005 is an apocalyptic number.

It is an amenable number.

1720080005 is a deficient number, since it is larger than the sum of its proper divisors (638886907).

1720080005 is an equidigital number, since it uses as much as digits as its factorization.

1720080005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49145155.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1720080005 is about 41473.8472413640. The cubic root of 1720080005 is about 1198.1638597478.

Adding to 1720080005 its reverse (5000800271), we get a palindrome (6720880276).

The spelling of 1720080005 in words is "one billion, seven hundred twenty million, eighty thousand, five".