71196613 has 4 divisors (see below), whose sum is σ = 71215200. Its totient is φ = 71178028.

The previous prime is 71196589. The next prime is 71196659. The reversal of 71196613 is 31669117.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31669117 = 47 ⋅673811.

It is a cyclic number.

It is not a de Polignac number, because 71196613 - 2⁹ = 71196101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71196673) 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, 1195 + ... + 11992.

It is an arithmetic number, because the mean of its divisors is an integer number (17803800).

Almost surely, 2^71196613 is an apocalyptic number.

It is an amenable number.

71196613 is a deficient number, since it is larger than the sum of its proper divisors (18587).

71196613 is a wasteful number, since it uses less digits than its factorization.

71196613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18586.

The product of its digits is 6804, while the sum is 34.

The square root of 71196613 is about 8437.8085425068. The cubic root of 71196613 is about 414.4636473605.

The spelling of 71196613 in words is "seventy-one million, one hundred ninety-six thousand, six hundred thirteen".