71413217 has 2 divisors, whose sum is σ = 71413218. Its totient is φ = 71413216.

The previous prime is 71413213. The next prime is 71413241. The reversal of 71413217 is 71231417.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46771921 + 24641296 = 6839^2 + 4964^2 .

It is a cyclic number.

It is not a de Polignac number, because 71413217 - 2² = 71413213 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71413213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35706608 + 35706609.

It is an arithmetic number, because the mean of its divisors is an integer number (35706609).

Almost surely, 2^71413217 is an apocalyptic number.

It is an amenable number.

71413217 is a deficient number, since it is larger than the sum of its proper divisors (1).

71413217 is an equidigital number, since it uses as much as digits as its factorization.

71413217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 26.

The square root of 71413217 is about 8450.6341182186. The cubic root of 71413217 is about 414.8835343574.

It can be divided in two parts, 714 and 13217, that added together give a palindrome (13931).

The spelling of 71413217 in words is "seventy-one million, four hundred thirteen thousand, two hundred seventeen".