71871361 has 8 divisors (see below), whose sum is σ = 75916544. Its totient is φ = 67934160.

The previous prime is 71871341. The next prime is 71871377. The reversal of 71871361 is 16317817.

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 71871361 - 2⁵ = 71871329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71871301) 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, 25626 + ... + 28291.

It is an arithmetic number, because the mean of its divisors is an integer number (9489568).

Almost surely, 2^71871361 is an apocalyptic number.

It is an amenable number.

71871361 is a deficient number, since it is larger than the sum of its proper divisors (4045183).

71871361 is a wasteful number, since it uses less digits than its factorization.

71871361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53991.

The product of its digits is 7056, while the sum is 34.

The square root of 71871361 is about 8477.6978596787. The cubic root of 71871361 is about 415.7688577412.

The spelling of 71871361 in words is "seventy-one million, eight hundred seventy-one thousand, three hundred sixty-one".