71000853 has 48 divisors (see below), whose sum is σ = 126512640. Its totient is φ = 34927200.

The previous prime is 71000849. The next prime is 71000861. The reversal of 71000853 is 35800017.

It is not a de Polignac number, because 71000853 - 2² = 71000849 is a prime.

It is a super-2 number, since 2×71000853² = 10082242253455218, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71000803) 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 47 ways as a sum of consecutive naturals, for example, 29568 + ... + 31878.

It is an arithmetic number, because the mean of its divisors is an integer number (2635680).

Almost surely, 2^71000853 is an apocalyptic number.

It is an amenable number.

71000853 is a deficient number, since it is larger than the sum of its proper divisors (55511787).

71000853 is a wasteful number, since it uses less digits than its factorization.

71000853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358 (or 2351 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 71000853 is about 8426.2003892621. The cubic root of 71000853 is about 414.0834332068.

The spelling of 71000853 in words is "seventy-one million, eight hundred fifty-three", and thus it is an aban number.