70117271 has 16 divisors (see below), whose sum is σ = 83980800. Its totient is φ = 57238368.

The previous prime is 70117261. The next prime is 70117283. The reversal of 70117271 is 17271107.

It is a cyclic number.

It is not a de Polignac number, because 70117271 - 2¹⁸ = 69855127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70117271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70117261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42500 + ... + 44118.

It is an arithmetic number, because the mean of its divisors is an integer number (5248800).

Almost surely, 2^70117271 is an apocalyptic number.

70117271 is a deficient number, since it is larger than the sum of its proper divisors (13863529).

70117271 is a wasteful number, since it uses less digits than its factorization.

70117271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 686, while the sum is 26.

The square root of 70117271 is about 8373.6056152651. The cubic root of 70117271 is about 412.3585478877.

Adding to 70117271 its reverse (17271107), we get a palindrome (87388378).

The spelling of 70117271 in words is "seventy million, one hundred seventeen thousand, two hundred seventy-one".