713448721 has 2 divisors, whose sum is σ = 713448722. Its totient is φ = 713448720.

The previous prime is 713448719. The next prime is 713448731. The reversal of 713448721 is 127844317.

It is the 10905-th star number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366148225 + 347300496 = 19135^2 + 18636^2 .

It is a cyclic number.

It is not a de Polignac number, because 713448721 - 2¹ = 713448719 is a prime.

Together with 713448719, it forms a pair of twin primes.

It is equal to p_36913096 and since 713448721 and 36913096 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (713448731) 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 as a sum of consecutive naturals, namely, 356724360 + 356724361.

It is an arithmetic number, because the mean of its divisors is an integer number (356724361).

Almost surely, 2^713448721 is an apocalyptic number.

It is an amenable number.

713448721 is a deficient number, since it is larger than the sum of its proper divisors (1).

713448721 is an equidigital number, since it uses as much as digits as its factorization.

713448721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 37.

The square root of 713448721 is about 26710.4608908195. The cubic root of 713448721 is about 893.5542427086.

It can be divided in two parts, 7134 and 48721, that added together give a palindrome (55855).

The spelling of 713448721 in words is "seven hundred thirteen million, four hundred forty-eight thousand, seven hundred twenty-one".