71871351 has 4 divisors (see below), whose sum is σ = 95828472. Its totient is φ = 47914232.

The previous prime is 71871341. The next prime is 71871377. The reversal of 71871351 is 15317817.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71871351 - 2⁹ = 71870839 is a prime.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 11978556 + ... + 11978561.

It is an arithmetic number, because the mean of its divisors is an integer number (23957118).

Almost surely, 2^71871351 is an apocalyptic number.

71871351 is a deficient number, since it is larger than the sum of its proper divisors (23957121).

71871351 is a wasteful number, since it uses less digits than its factorization.

71871351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23957120.

The product of its digits is 5880, while the sum is 33.

The square root of 71871351 is about 8477.6972698959. The cubic root of 71871351 is about 415.7688384582.

The spelling of 71871351 in words is "seventy-one million, eight hundred seventy-one thousand, three hundred fifty-one".