71470217 has 16 divisors (see below), whose sum is σ = 88193280. Its totient is φ = 56400192.

The previous prime is 71470211. The next prime is 71470249. The reversal of 71470217 is 71207417.

It is a cyclic number.

It is not a de Polignac number, because 71470217 - 2¹⁰ = 71469193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71470217.

It is not an unprimeable number, because it can be changed into a prime (71470211) 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, 45548 + ... + 47090.

It is an arithmetic number, because the mean of its divisors is an integer number (5512080).

Almost surely, 2^71470217 is an apocalyptic number.

It is an amenable number.

71470217 is a deficient number, since it is larger than the sum of its proper divisors (16723063).

71470217 is a wasteful number, since it uses less digits than its factorization.

71470217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072.

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 71470217 is about 8454.0059735016. The cubic root of 71470217 is about 414.9938877505.

The spelling of 71470217 in words is "seventy-one million, four hundred seventy thousand, two hundred seventeen".