71168963 has 4 divisors (see below), whose sum is σ = 73464768. Its totient is φ = 68873160.

The previous prime is 71168947. The next prime is 71168971. The reversal of 71168963 is 36986117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36986117 = 7 ⋅5283731.

It is a cyclic number.

It is not a de Polignac number, because 71168963 - 2⁴ = 71168947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71168963.

It is not an unprimeable number, because it can be changed into a prime (71168563) 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, 1147856 + ... + 1147917.

It is an arithmetic number, because the mean of its divisors is an integer number (18366192).

Almost surely, 2^71168963 is an apocalyptic number.

71168963 is a deficient number, since it is larger than the sum of its proper divisors (2295805).

71168963 is a wasteful number, since it uses less digits than its factorization.

71168963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295804.

The product of its digits is 54432, while the sum is 41.

The square root of 71168963 is about 8436.1699247941. The cubic root of 71168963 is about 414.4099865508.

The spelling of 71168963 in words is "seventy-one million, one hundred sixty-eight thousand, nine hundred sixty-three".