730873519 has 4 divisors (see below), whose sum is σ = 731944296. Its totient is φ = 729802744.

The previous prime is 730873511. The next prime is 730873523. The reversal of 730873519 is 915378037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 915378037 = 7 ⋅130768291.

It is a cyclic number.

It is not a de Polignac number, because 730873519 - 2³ = 730873511 is a prime.

It is a super-2 number, since 2×730873519² = 1068352201550886722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730873511) 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 3 ways as a sum of consecutive naturals, for example, 534364 + ... + 535729.

It is an arithmetic number, because the mean of its divisors is an integer number (182986074).

Almost surely, 2^730873519 is an apocalyptic number.

730873519 is a deficient number, since it is larger than the sum of its proper divisors (1070777).

730873519 is a wasteful number, since it uses less digits than its factorization.

730873519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070776.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 730873519 is about 27034.6725336187. The cubic root of 730873519 is about 900.7703359324.

The spelling of 730873519 in words is "seven hundred thirty million, eight hundred seventy-three thousand, five hundred nineteen".