70122817 has 2 divisors, whose sum is σ = 70122818. Its totient is φ = 70122816.

The previous prime is 70122769. The next prime is 70122823. The reversal of 70122817 is 71822107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49547521 + 20575296 = 7039^2 + 4536^2 .

It is a cyclic number.

It is not a de Polignac number, because 70122817 - 2¹¹ = 70120769 is a prime.

It is not a weakly prime, because it can be changed into another prime (70122517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35061408 + 35061409.

It is an arithmetic number, because the mean of its divisors is an integer number (35061409).

Almost surely, 2^70122817 is an apocalyptic number.

It is an amenable number.

70122817 is a deficient number, since it is larger than the sum of its proper divisors (1).

70122817 is an equidigital number, since it uses as much as digits as its factorization.

70122817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 70122817 is about 8373.9367683307. The cubic root of 70122817 is about 412.3694195802.

The spelling of 70122817 in words is "seventy million, one hundred twenty-two thousand, eight hundred seventeen".