71000412 has 36 divisors (see below), whose sum is σ = 192717000. Its totient is φ = 20285664.

The previous prime is 71000407. The next prime is 71000429. The reversal of 71000412 is 21400017.

It is a junction number, because it is equal to n+sod(n) for n = 71000391 and 71000400.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 59787 + ... + 60962.

It is an arithmetic number, because the mean of its divisors is an integer number (5353250).

Almost surely, 2^71000412 is an apocalyptic number.

It is an amenable number.

71000412 is an abundant number, since it is smaller than the sum of its proper divisors (121716588).

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

71000412 is a wasteful number, since it uses less digits than its factorization.

71000412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120770 (or 120761 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 71000412 is about 8426.1742208431. The cubic root of 71000412 is about 414.0825758876.

Adding to 71000412 its reverse (21400017), we get a palindrome (92400429).

The spelling of 71000412 in words is "seventy-one million, four hundred twelve", and thus it is an aban number.