710721541 has 4 divisors (see below), whose sum is σ = 714829932. Its totient is φ = 706613152.

The previous prime is 710721521. The next prime is 710721569. The reversal of 710721541 is 145127017.

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 569824641 + 140896900 = 23871^2 + 11870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-710721541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (710721521) 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, 2053936 + ... + 2054281.

It is an arithmetic number, because the mean of its divisors is an integer number (178707483).

Almost surely, 2^710721541 is an apocalyptic number.

It is an amenable number.

710721541 is a deficient number, since it is larger than the sum of its proper divisors (4108391).

710721541 is a wasteful number, since it uses less digits than its factorization.

710721541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108390.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 710721541 is about 26659.3612264060. The cubic root of 710721541 is about 892.4142425846.

Adding to 710721541 its reverse (145127017), we get a palindrome (855848558).

The spelling of 710721541 in words is "seven hundred ten million, seven hundred twenty-one thousand, five hundred forty-one".