1720117059 has 8 divisors (see below), whose sum is σ = 2296850112. Its totient is φ = 1145064360.

The previous prime is 1720117043. The next prime is 1720117073. The reversal of 1720117059 is 9507110271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1720117059 - 2⁴ = 1720117043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1720117079) 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, 417697 + ... + 421794.

It is an arithmetic number, because the mean of its divisors is an integer number (287106264).

Almost surely, 2^1720117059 is an apocalyptic number.

1720117059 is a deficient number, since it is larger than the sum of its proper divisors (576733053).

1720117059 is an equidigital number, since it uses as much as digits as its factorization.

1720117059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840177.

The product of its (nonzero) digits is 4410, while the sum is 33.

The square root of 1720117059 is about 41474.2939542073. The cubic root of 1720117059 is about 1198.1724633098.

The spelling of 1720117059 in words is "one billion, seven hundred twenty million, one hundred seventeen thousand, fifty-nine".