70106917 has 2 divisors, whose sum is σ = 70106918. Its totient is φ = 70106916.

The previous prime is 70106893. The next prime is 70106923. The reversal of 70106917 is 71960107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54154881 + 15952036 = 7359^2 + 3994^2 .

It is a cyclic number.

It is not a de Polignac number, because 70106917 - 2¹⁵ = 70074149 is a prime.

It is a super-2 number, since 2×70106917² = 9829959622489778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70106957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35053458 + 35053459.

It is an arithmetic number, because the mean of its divisors is an integer number (35053459).

Almost surely, 2^70106917 is an apocalyptic number.

It is an amenable number.

70106917 is a deficient number, since it is larger than the sum of its proper divisors (1).

70106917 is an equidigital number, since it uses as much as digits as its factorization.

70106917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 70106917 is about 8372.9873402508. The cubic root of 70106917 is about 412.3382496525.

The spelling of 70106917 in words is "seventy million, one hundred six thousand, nine hundred seventeen".