70017617 has 2 divisors, whose sum is σ = 70017618. Its totient is φ = 70017616.

The previous prime is 70017599. The next prime is 70017637. The reversal of 70017617 is 71671007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48497296 + 21520321 = 6964^2 + 4639^2 .

It is an emirp because it is prime and its reverse (71671007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70017617 - 2¹² = 70013521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70017617.

It is not a weakly prime, because it can be changed into another prime (70017637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35008808 + 35008809.

It is an arithmetic number, because the mean of its divisors is an integer number (35008809).

Almost surely, 2^70017617 is an apocalyptic number.

It is an amenable number.

70017617 is a deficient number, since it is larger than the sum of its proper divisors (1).

70017617 is an equidigital number, since it uses as much as digits as its factorization.

70017617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2058, while the sum is 29.

The square root of 70017617 is about 8367.6530162286. The cubic root of 70017617 is about 412.1631007395.

The spelling of 70017617 in words is "seventy million, seventeen thousand, six hundred seventeen".