713224321 has 4 divisors (see below), whose sum is σ = 732500692. Its totient is φ = 693947952.

The previous prime is 713224301. The next prime is 713224333. The reversal of 713224321 is 123422317.

It is a happy number.

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 621754225 + 91470096 = 24935^2 + 9564^2 .

It is a cyclic number.

It is not a de Polignac number, because 713224321 - 2¹⁵ = 713191553 is a prime.

It is a super-2 number, since 2×713224321² = 1017377864131822082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (713224301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9638130 + ... + 9638203.

It is an arithmetic number, because the mean of its divisors is an integer number (183125173).

Almost surely, 2^713224321 is an apocalyptic number.

It is an amenable number.

713224321 is a deficient number, since it is larger than the sum of its proper divisors (19276371).

713224321 is a wasteful number, since it uses less digits than its factorization.

713224321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19276370.

The product of its digits is 2016, while the sum is 25.

The square root of 713224321 is about 26706.2599590433. The cubic root of 713224321 is about 893.4605501080.

Adding to 713224321 its reverse (123422317), we get a palindrome (836646638).

The spelling of 713224321 in words is "seven hundred thirteen million, two hundred twenty-four thousand, three hundred twenty-one".