70706717 has 8 divisors (see below), whose sum is σ = 72209880. Its totient is φ = 69209920.

The previous prime is 70706707. The next prime is 70706729. The reversal of 70706717 is 71760707.

It can be written as a sum of positive squares in 4 ways, for example, as 40081561 + 30625156 = 6331^2 + 5534^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70706717 - 2¹⁰ = 70705693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70706707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25667 + ... + 28287.

It is an arithmetic number, because the mean of its divisors is an integer number (9026235).

Almost surely, 2^70706717 is an apocalyptic number.

It is an amenable number.

70706717 is a deficient number, since it is larger than the sum of its proper divisors (1503163).

70706717 is a wasteful number, since it uses less digits than its factorization.

70706717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183.

The product of its (nonzero) digits is 14406, while the sum is 35.

The square root of 70706717 is about 8408.7286197142. The cubic root of 70706717 is about 413.5108324684.

The spelling of 70706717 in words is "seventy million, seven hundred six thousand, seven hundred seventeen".