71085938 has 32 divisors (see below), whose sum is σ = 134645760. Its totient is φ = 27340560.

The previous prime is 71085919. The next prime is 71085947. The reversal of 71085938 is 83958017.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71085895 and 71085904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9245 + ... + 15087.

It is an arithmetic number, because the mean of its divisors is an integer number (4207680).

Almost surely, 2^71085938 is an apocalyptic number.

71085938 is a deficient number, since it is larger than the sum of its proper divisors (63559822).

71085938 is a wasteful number, since it uses less digits than its factorization.

71085938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 71085938 is about 8431.2477131205. The cubic root of 71085938 is about 414.2487749976.

The spelling of 71085938 in words is "seventy-one million, eighty-five thousand, nine hundred thirty-eight".