710020081 has 2 divisors, whose sum is σ = 710020082. Its totient is φ = 710020080.

The previous prime is 710020067. The next prime is 710020099. The reversal of 710020081 is 180020017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 697805056 + 12215025 = 26416^2 + 3495^2 .

It is an emirp because it is prime and its reverse (180020017) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 710020081 - 2⁵ = 710020049 is a prime.

It is a super-2 number, since 2×710020081² = 1008257030846493122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (710020061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355010040 + 355010041.

It is an arithmetic number, because the mean of its divisors is an integer number (355010041).

Almost surely, 2^710020081 is an apocalyptic number.

It is an amenable number.

710020081 is a deficient number, since it is larger than the sum of its proper divisors (1).

710020081 is an equidigital number, since it uses as much as digits as its factorization.

710020081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 710020081 is about 26646.2019995346. The cubic root of 710020081 is about 892.1205509316.

Adding to 710020081 its reverse (180020017), we get a palindrome (890040098).

The spelling of 710020081 in words is "seven hundred ten million, twenty thousand, eighty-one".