71085950 has 24 divisors (see below), whose sum is σ = 142391928. Its totient is φ = 26246880.

The previous prime is 71085947. The next prime is 71085977. The reversal of 71085950 is 5958017.

It is a self number, because there is not a number n which added to its sum of digits gives 71085950.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54032 + ... + 55331.

It is an arithmetic number, because the mean of its divisors is an integer number (5932997).

Almost surely, 2^71085950 is an apocalyptic number.

71085950 is an abundant number, since it is smaller than the sum of its proper divisors (71305978).

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

71085950 is a wasteful number, since it uses less digits than its factorization.

71085950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109388 (or 109383 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 71085950 is about 8431.2484247589. The cubic root of 71085950 is about 414.2487983073.

The spelling of 71085950 in words is "seventy-one million, eighty-five thousand, nine hundred fifty".