70968169 has 2 divisors, whose sum is σ = 70968170. Its totient is φ = 70968168.

The previous prime is 70968143. The next prime is 70968187. The reversal of 70968169 is 96186907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64208169 + 6760000 = 8013^2 + 2600^2 .

It is an emirp because it is prime and its reverse (96186907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70968169 - 2⁵ = 70968137 is a prime.

It is a super-2 number, since 2×70968169² = 10072962022425122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70968119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35484084 + 35484085.

It is an arithmetic number, because the mean of its divisors is an integer number (35484085).

Almost surely, 2^70968169 is an apocalyptic number.

It is an amenable number.

70968169 is a deficient number, since it is larger than the sum of its proper divisors (1).

70968169 is an equidigital number, since it uses as much as digits as its factorization.

70968169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 70968169 is about 8424.2607390797. The cubic root of 70968169 is about 414.0198847676.

The spelling of 70968169 in words is "seventy million, nine hundred sixty-eight thousand, one hundred sixty-nine".