71354843 has 4 divisors (see below), whose sum is σ = 81548400. Its totient is φ = 61161288.

The previous prime is 71354837. The next prime is 71354863. The reversal of 71354843 is 34845317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34845317 = 13 ⋅2680409.

It is a cyclic number.

It is not a de Polignac number, because 71354843 - 2¹⁴ = 71338459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71354863) 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, 5096768 + ... + 5096781.

It is an arithmetic number, because the mean of its divisors is an integer number (20387100).

Almost surely, 2^71354843 is an apocalyptic number.

71354843 is a deficient number, since it is larger than the sum of its proper divisors (10193557).

71354843 is a wasteful number, since it uses less digits than its factorization.

71354843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10193556.

The product of its digits is 40320, while the sum is 35.

The square root of 71354843 is about 8447.1795884780. The cubic root of 71354843 is about 414.7704599889.

The spelling of 71354843 in words is "seventy-one million, three hundred fifty-four thousand, eight hundred forty-three".