70660171 has 4 divisors (see below), whose sum is σ = 70778344. Its totient is φ = 70542000.

The previous prime is 70660169. The next prime is 70660181. The reversal of 70660171 is 17106607.

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

It is a cyclic number.

It is not a de Polignac number, because 70660171 - 2¹ = 70660169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70660181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58185 + ... + 59386.

It is an arithmetic number, because the mean of its divisors is an integer number (17694586).

Almost surely, 2^70660171 is an apocalyptic number.

70660171 is a deficient number, since it is larger than the sum of its proper divisors (118173).

70660171 is a wasteful number, since it uses less digits than its factorization.

70660171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118172.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 70660171 is about 8405.9604448272. The cubic root of 70660171 is about 413.4200749418.

Adding to 70660171 its reverse (17106607), we get a palindrome (87766778).

The spelling of 70660171 in words is "seventy million, six hundred sixty thousand, one hundred seventy-one".