1017660673 has 4 divisors (see below), whose sum is σ = 1019310660. Its totient is φ = 1016010688.

The previous prime is 1017660643. The next prime is 1017660697. The reversal of 1017660673 is 3760667101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3760667101 = 139 ⋅27055159.

It can be written as a sum of positive squares in 2 ways, for example, as 34963569 + 982697104 = 5913^2 + 31348^2 .

It is a cyclic number.

It is not a de Polignac number, because 1017660673 - 2⁵ = 1017660641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1017660643) 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 3 ways as a sum of consecutive naturals, for example, 824068 + ... + 825301.

It is an arithmetic number, because the mean of its divisors is an integer number (254827665).

Almost surely, 2^1017660673 is an apocalyptic number.

It is an amenable number.

1017660673 is a deficient number, since it is larger than the sum of its proper divisors (1649987).

1017660673 is an equidigital number, since it uses as much as digits as its factorization.

1017660673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649986.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 1017660673 is about 31900.7942377615. The cubic root of 1017660673 is about 1005.8525715839.

The spelling of 1017660673 in words is "one billion, seventeen million, six hundred sixty thousand, six hundred seventy-three".