1720350363 has 16 divisors (see below), whose sum is σ = 2378163200. Its totient is φ = 1105043040.

The previous prime is 1720350349. The next prime is 1720350367. The reversal of 1720350363 is 3630530271.

It is not a de Polignac number, because 1720350363 - 2⁶ = 1720350299 is a prime.

It is a super-3 number, since 3×1720350363³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1720350363.

It is not an unprimeable number, because it can be changed into a prime (1720350367) 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 in 15 ways as a sum of consecutive naturals, for example, 19093 + ... + 61686.

It is an arithmetic number, because the mean of its divisors is an integer number (148635200).

Almost surely, 2^1720350363 is an apocalyptic number.

1720350363 is a deficient number, since it is larger than the sum of its proper divisors (657812837).

1720350363 is a wasteful number, since it uses less digits than its factorization.

1720350363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81042.

The product of its (nonzero) digits is 11340, while the sum is 30.

The square root of 1720350363 is about 41477.1064926183. The cubic root of 1720350363 is about 1198.2266312882.

The spelling of 1720350363 in words is "one billion, seven hundred twenty million, three hundred fifty thousand, three hundred sixty-three".