70717219 has 2 divisors, whose sum is σ = 70717220. Its totient is φ = 70717218.

The previous prime is 70717181. The next prime is 70717247. The reversal of 70717219 is 91271707.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70717219 - 2²¹ = 68620067 is a prime.

It is a super-2 number, since 2×70717219² = 10001850126187922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70717279) 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, 35358609 + 35358610.

It is an arithmetic number, because the mean of its divisors is an integer number (35358610).

Almost surely, 2^70717219 is an apocalyptic number.

70717219 is a deficient number, since it is larger than the sum of its proper divisors (1).

70717219 is an equidigital number, since it uses as much as digits as its factorization.

70717219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6174, while the sum is 34.

The square root of 70717219 is about 8409.3530666752. The cubic root of 70717219 is about 413.5313042423.

The spelling of 70717219 in words is "seventy million, seven hundred seventeen thousand, two hundred nineteen".