70220317 has 2 divisors, whose sum is σ = 70220318. Its totient is φ = 70220316.

The previous prime is 70220299. The next prime is 70220321. The reversal of 70220317 is 71302207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45954841 + 24265476 = 6779^2 + 4926^2 .

It is an emirp because it is prime and its reverse (71302207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70220317 - 2¹⁵ = 70187549 is a prime.

It is a super-3 number, since 3×70220317³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70223317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35110158 + 35110159.

It is an arithmetic number, because the mean of its divisors is an integer number (35110159).

Almost surely, 2^70220317 is an apocalyptic number.

It is an amenable number.

70220317 is a deficient number, since it is larger than the sum of its proper divisors (1).

70220317 is an equidigital number, since it uses as much as digits as its factorization.

70220317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 70220317 is about 8379.7563807070. The cubic root of 70220317 is about 412.5604529704.

The spelling of 70220317 in words is "seventy million, two hundred twenty thousand, three hundred seventeen".