71342417 has 4 divisors (see below), whose sum is σ = 71736756. Its totient is φ = 70948080.

The previous prime is 71342413. The next prime is 71342423. The reversal of 71342417 is 71424317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71424317 = 293 ⋅243769.

It can be written as a sum of positive squares in 2 ways, for example, as 24611521 + 46730896 = 4961^2 + 6836^2 .

It is a cyclic number.

It is not a de Polignac number, because 71342417 - 2² = 71342413 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 71342417.

It is not an unprimeable number, because it can be changed into a prime (71342413) 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, 196898 + ... + 197259.

It is an arithmetic number, because the mean of its divisors is an integer number (17934189).

Almost surely, 2^71342417 is an apocalyptic number.

It is an amenable number.

71342417 is a deficient number, since it is larger than the sum of its proper divisors (394339).

71342417 is a wasteful number, since it uses less digits than its factorization.

71342417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394338.

The product of its digits is 4704, while the sum is 29.

The square root of 71342417 is about 8446.4440446853. Note that the first 3 decimals coincide. The cubic root of 71342417 is about 414.7463820300.

The spelling of 71342417 in words is "seventy-one million, three hundred forty-two thousand, four hundred seventeen".