70606517 has 2 divisors, whose sum is σ = 70606518. Its totient is φ = 70606516.

The previous prime is 70606513. The next prime is 70606553. The reversal of 70606517 is 71560607.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45616516 + 24990001 = 6754^2 + 4999^2 .

It is an emirp because it is prime and its reverse (71560607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70606517 - 2² = 70606513 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70606513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35303258 + 35303259.

It is an arithmetic number, because the mean of its divisors is an integer number (35303259).

Almost surely, 2^70606517 is an apocalyptic number.

It is an amenable number.

70606517 is a deficient number, since it is larger than the sum of its proper divisors (1).

70606517 is an equidigital number, since it uses as much as digits as its factorization.

70606517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 70606517 is about 8402.7684128506. The cubic root of 70606517 is about 413.3154084463.

The spelling of 70606517 in words is "seventy million, six hundred six thousand, five hundred seventeen".