1730270973 has 4 divisors (see below), whose sum is σ = 2307027968. Its totient is φ = 1153513980.

The previous prime is 1730270963. The next prime is 1730270977. The reversal of 1730270973 is 3790720371.

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: 3790720371 = 3 ⋅1263573457.

It is not a de Polignac number, because 1730270973 - 2⁴ = 1730270957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1730270977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288378493 + ... + 288378498.

It is an arithmetic number, because the mean of its divisors is an integer number (576756992).

Almost surely, 2^1730270973 is an apocalyptic number.

It is an amenable number.

1730270973 is a deficient number, since it is larger than the sum of its proper divisors (576756995).

1730270973 is an equidigital number, since it uses as much as digits as its factorization.

1730270973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576756994.

The product of its (nonzero) digits is 55566, while the sum is 39.

The square root of 1730270973 is about 41596.5259727300. The cubic root of 1730270973 is about 1200.5254580724.

The spelling of 1730270973 in words is "one billion, seven hundred thirty million, two hundred seventy thousand, nine hundred seventy-three".