70716617 has 4 divisors (see below), whose sum is σ = 74876436. Its totient is φ = 66556800.

The previous prime is 70716601. The next prime is 70716619. The reversal of 70716617 is 71661707.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57093136 + 13623481 = 7556^2 + 3691^2 .

It is a cyclic number.

It is not a de Polignac number, because 70716617 - 2⁴ = 70716601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70716619) 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, 2079884 + ... + 2079917.

It is an arithmetic number, because the mean of its divisors is an integer number (18719109).

Almost surely, 2^70716617 is an apocalyptic number.

It is an amenable number.

70716617 is a deficient number, since it is larger than the sum of its proper divisors (4159819).

70716617 is a wasteful number, since it uses less digits than its factorization.

70716617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159818.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 70716617 is about 8409.3172731203. The cubic root of 70716617 is about 413.5301308055.

The spelling of 70716617 in words is "seventy million, seven hundred sixteen thousand, six hundred seventeen".