70517617 has 2 divisors, whose sum is σ = 70517618. Its totient is φ = 70517616.

The previous prime is 70517539. The next prime is 70517633. The reversal of 70517617 is 71671507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39425841 + 31091776 = 6279^2 + 5576^2 .

It is a cyclic number.

It is not a de Polignac number, because 70517617 - 2²³ = 62129009 is a prime.

It is not a weakly prime, because it can be changed into another prime (70517017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35258808 + 35258809.

It is an arithmetic number, because the mean of its divisors is an integer number (35258809).

Almost surely, 2^70517617 is an apocalyptic number.

It is an amenable number.

70517617 is a deficient number, since it is larger than the sum of its proper divisors (1).

70517617 is an equidigital number, since it uses as much as digits as its factorization.

70517617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10290, while the sum is 34.

The square root of 70517617 is about 8397.4768234274. The cubic root of 70517617 is about 413.1418684134.

The spelling of 70517617 in words is "seventy million, five hundred seventeen thousand, six hundred seventeen".