730520247 has 16 divisors (see below), whose sum is σ = 1002986208. Its totient is φ = 472657920.

The previous prime is 730520233. The next prime is 730520269. The reversal of 730520247 is 742025037.

It is not a de Polignac number, because 730520247 - 2¹¹ = 730518199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730520047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8353 + ... + 39125.

It is an arithmetic number, because the mean of its divisors is an integer number (62686638).

Almost surely, 2^730520247 is an apocalyptic number.

730520247 is a deficient number, since it is larger than the sum of its proper divisors (272465961).

730520247 is a wasteful number, since it uses less digits than its factorization.

730520247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31010.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 730520247 is about 27028.1380601772. The cubic root of 730520247 is about 900.6251816687.

The spelling of 730520247 in words is "seven hundred thirty million, five hundred twenty thousand, two hundred forty-seven".