70201717 has 4 divisors (see below), whose sum is σ = 71913996. Its totient is φ = 68489440.

The previous prime is 70201697. The next prime is 70201739. The reversal of 70201717 is 71710207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71710207 = 2957 ⋅24251.

It can be written as a sum of positive squares in 2 ways, for example, as 2452356 + 67749361 = 1566^2 + 8231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70201717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70201691 and 70201700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70291717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856078 + ... + 856159.

It is an arithmetic number, because the mean of its divisors is an integer number (17978499).

Almost surely, 2^70201717 is an apocalyptic number.

It is an amenable number.

70201717 is a deficient number, since it is larger than the sum of its proper divisors (1712279).

70201717 is a wasteful number, since it uses less digits than its factorization.

70201717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712278.

The product of its (nonzero) digits is 686, while the sum is 25.

The square root of 70201717 is about 8378.6464897381. The cubic root of 70201717 is about 412.5240233331.

The spelling of 70201717 in words is "seventy million, two hundred one thousand, seven hundred seventeen".