730443785 has 4 divisors (see below), whose sum is σ = 876532548. Its totient is φ = 584355024.

The previous prime is 730443719. The next prime is 730443787. The reversal of 730443785 is 587344037.

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

It can be written as a sum of positive squares in 2 ways, for example, as 390299536 + 340144249 = 19756^2 + 18443^2 .

It is a cyclic number.

It is not a de Polignac number, because 730443785 - 2²² = 726249481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730443787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73044374 + ... + 73044383.

It is an arithmetic number, because the mean of its divisors is an integer number (219133137).

Almost surely, 2^730443785 is an apocalyptic number.

It is an amenable number.

730443785 is a deficient number, since it is larger than the sum of its proper divisors (146088763).

730443785 is a wasteful number, since it uses less digits than its factorization.

730443785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146088762.

The product of its (nonzero) digits is 282240, while the sum is 41.

The square root of 730443785 is about 27026.7235343095. The cubic root of 730443785 is about 900.5937583985.

The spelling of 730443785 in words is "seven hundred thirty million, four hundred forty-three thousand, seven hundred eighty-five".