71334971 has 4 divisors (see below), whose sum is σ = 71399952. Its totient is φ = 71269992.

The previous prime is 71334959. The next prime is 71334973. The reversal of 71334971 is 17943317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17943317 = 7 ⋅2563331.

It is a cyclic number.

It is not a de Polignac number, because 71334971 - 2²⁶ = 4226107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71334973) 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, 30815 + ... + 33048.

It is an arithmetic number, because the mean of its divisors is an integer number (17849988).

Almost surely, 2^71334971 is an apocalyptic number.

71334971 is a deficient number, since it is larger than the sum of its proper divisors (64981).

71334971 is a wasteful number, since it uses less digits than its factorization.

71334971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64980.

The product of its digits is 15876, while the sum is 35.

The square root of 71334971 is about 8446.0032559785. The cubic root of 71334971 is about 414.7319525169.

The spelling of 71334971 in words is "seventy-one million, three hundred thirty-four thousand, nine hundred seventy-one".