1980000717 has 4 divisors (see below), whose sum is σ = 2640000960. Its totient is φ = 1320000476.

The previous prime is 1980000713. The next prime is 1980000733. The reversal of 1980000717 is 7170000891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7170000891 = 3 ⋅2390000297.

It is a cyclic number.

It is not a de Polignac number, because 1980000717 - 2² = 1980000713 is a prime.

1980000717 is a modest number, since divided by 717 gives 198 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980000713) 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, 330000117 + ... + 330000122.

It is an arithmetic number, because the mean of its divisors is an integer number (660000240).

Almost surely, 2^1980000717 is an apocalyptic number.

It is an amenable number.

1980000717 is a deficient number, since it is larger than the sum of its proper divisors (660000243).

1980000717 is an equidigital number, since it uses as much as digits as its factorization.

1980000717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660000242.

The product of its (nonzero) digits is 3528, while the sum is 33.

The square root of 1980000717 is about 44497.1989792616. The cubic root of 1980000717 is about 1255.7073872166.

The spelling of 1980000717 in words is "one billion, nine hundred eighty million, seven hundred seventeen", and thus it is an aban number.