71217275 has 6 divisors (see below), whose sum is σ = 88309452. Its totient is φ = 56973800.

The previous prime is 71217259. The next prime is 71217277. The reversal of 71217275 is 57271217.

It is not a de Polignac number, because 71217275 - 2⁴ = 71217259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71217277) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1424321 + ... + 1424370.

It is an arithmetic number, because the mean of its divisors is an integer number (14718242).

Almost surely, 2^71217275 is an apocalyptic number.

71217275 is a deficient number, since it is larger than the sum of its proper divisors (17092177).

71217275 is a wasteful number, since it uses less digits than its factorization.

71217275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848701 (or 2848696 counting only the distinct ones).

The product of its digits is 6860, while the sum is 32.

The square root of 71217275 is about 8439.0328237305. The cubic root of 71217275 is about 414.5037373743.

The spelling of 71217275 in words is "seventy-one million, two hundred seventeen thousand, two hundred seventy-five".