1730772506 has 4 divisors (see below), whose sum is σ = 2596158762. Its totient is φ = 865386252.

The previous prime is 1730772503. The next prime is 1730772599. The reversal of 1730772506 is 6052770371.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1697028025 + 33744481 = 41195^2 + 5809^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1730772506.

It is not an unprimeable number, because it can be changed into a prime (1730772503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432693125 + ... + 432693128.

Almost surely, 2^1730772506 is an apocalyptic number.

1730772506 is a deficient number, since it is larger than the sum of its proper divisors (865386256).

1730772506 is an equidigital number, since it uses as much as digits as its factorization.

1730772506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865386255.

The product of its (nonzero) digits is 61740, while the sum is 38.

The square root of 1730772506 is about 41602.5540802485. The cubic root of 1730772506 is about 1200.6414408632.

The spelling of 1730772506 in words is "one billion, seven hundred thirty million, seven hundred seventy-two thousand, five hundred six".