71000321 has 8 divisors (see below), whose sum is σ = 85414080. Its totient is φ = 57654288.

The previous prime is 71000263. The next prime is 71000329. The reversal of 71000321 is 12300017.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71000321 - 2⁶ = 71000257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71000296 and 71000305.

It is not an unprimeable number, because it can be changed into a prime (71000329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266786 + ... + 267051.

It is an arithmetic number, because the mean of its divisors is an integer number (10676760).

Almost surely, 2^71000321 is an apocalyptic number.

It is an amenable number.

71000321 is a deficient number, since it is larger than the sum of its proper divisors (14413759).

71000321 is a wasteful number, since it uses less digits than its factorization.

71000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533863.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 71000321 is about 8426.1688210004. The cubic root of 71000321 is about 414.0823989801.

Adding to 71000321 its reverse (12300017), we get a palindrome (83300338).

The spelling of 71000321 in words is "seventy-one million, three hundred twenty-one", and thus it is an aban number.