730566313 has 4 divisors (see below), whose sum is σ = 773540820. Its totient is φ = 687591808.

The previous prime is 730566307. The next prime is 730566323. The reversal of 730566313 is 313665037.

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 561358249 + 169208064 = 23693^2 + 13008^2 .

It is a cyclic number.

It is not a de Polignac number, because 730566313 - 2⁵ = 730566281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730566323) 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, 21487228 + ... + 21487261.

It is an arithmetic number, because the mean of its divisors is an integer number (193385205).

Almost surely, 2^730566313 is an apocalyptic number.

It is an amenable number.

730566313 is a deficient number, since it is larger than the sum of its proper divisors (42974507).

730566313 is a wasteful number, since it uses less digits than its factorization.

730566313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42974506.

The product of its (nonzero) digits is 34020, while the sum is 34.

The square root of 730566313 is about 27028.9902327112. The cubic root of 730566313 is about 900.6441121627.

The spelling of 730566313 in words is "seven hundred thirty million, five hundred sixty-six thousand, three hundred thirteen".