71346891 has 24 divisors (see below), whose sum is σ = 120723264. Its totient is φ = 37062480.

The previous prime is 71346887. The next prime is 71346917. The reversal of 71346891 is 19864317.

It is not a de Polignac number, because 71346891 - 2² = 71346887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71346811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20445 + ... + 23678.

It is an arithmetic number, because the mean of its divisors is an integer number (5030136).

Almost surely, 2^71346891 is an apocalyptic number.

71346891 is a deficient number, since it is larger than the sum of its proper divisors (49376373).

71346891 is a wasteful number, since it uses less digits than its factorization.

71346891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44151 (or 44144 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 71346891 is about 8446.7088857140. The cubic root of 71346891 is about 414.7550516574.

The spelling of 71346891 in words is "seventy-one million, three hundred forty-six thousand, eight hundred ninety-one".