71417320 has 32 divisors (see below), whose sum is σ = 173050920. Its totient is φ = 26369280.

The previous prime is 71417303. The next prime is 71417321. The reversal of 71417320 is 2371417.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 64224196 + 7193124 = 8014^2 + 2682^2 .

It is not an unprimeable number, because it can be changed into a prime (71417321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68151 + ... + 69190.

Almost surely, 2^71417320 is an apocalyptic number.

It is an amenable number.

71417320 is an abundant number, since it is smaller than the sum of its proper divisors (101633600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71417320 is a wasteful number, since it uses less digits than its factorization.

71417320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137365 (or 137361 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 71417320 is about 8450.8768775790. The cubic root of 71417320 is about 414.8914798265.

Adding to 71417320 its reverse (2371417), we get a palindrome (73788737).

The spelling of 71417320 in words is "seventy-one million, four hundred seventeen thousand, three hundred twenty".