730884389 has 4 divisors (see below), whose sum is σ = 743272320. Its totient is φ = 718496460.

The previous prime is 730884359. The next prime is 730884391. The reversal of 730884389 is 983488037.

It is a happy number.

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: 983488037 = 7 ⋅140498291.

It is a cyclic number.

It is not a de Polignac number, because 730884389 - 2¹⁶ = 730818853 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 (730884359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6193877 + ... + 6193994.

It is an arithmetic number, because the mean of its divisors is an integer number (185818080).

Almost surely, 2^730884389 is an apocalyptic number.

It is an amenable number.

730884389 is a deficient number, since it is larger than the sum of its proper divisors (12387931).

730884389 is a wasteful number, since it uses less digits than its factorization.

730884389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12387930.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 730884389 is about 27034.8735710008. The cubic root of 730884389 is about 900.7748015136.

It can be divided in two parts, 73088 and 4389, that added together give a palindrome (77477).

The spelling of 730884389 in words is "seven hundred thirty million, eight hundred eighty-four thousand, three hundred eighty-nine".