71338625 has 16 divisors (see below), whose sum is σ = 89513424. Its totient is φ = 56761600.

The previous prime is 71338607. The next prime is 71338633. The reversal of 71338625 is 52683317.

It can be written as a sum of positive squares in 8 ways, for example, as 16711744 + 54626881 = 4088^2 + 7391^2 .

It is not a de Polignac number, because 71338625 - 2¹⁰ = 71337601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23177 + ... + 26073.

It is an arithmetic number, because the mean of its divisors is an integer number (5594589).

Almost surely, 2^71338625 is an apocalyptic number.

It is an amenable number.

71338625 is a deficient number, since it is larger than the sum of its proper divisors (18174799).

71338625 is a wasteful number, since it uses less digits than its factorization.

71338625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109 (or 3099 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 71338625 is about 8446.2195685407. The cubic root of 71338625 is about 414.7390336847.

The spelling of 71338625 in words is "seventy-one million, three hundred thirty-eight thousand, six hundred twenty-five".