71268713 has 4 divisors (see below), whose sum is σ = 72003540. Its totient is φ = 70533888.

The previous prime is 71268683. The next prime is 71268719. The reversal of 71268713 is 31786217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31786217 = 3359 ⋅9463.

It can be written as a sum of positive squares in 2 ways, for example, as 50865424 + 20403289 = 7132^2 + 4517^2 .

It is a cyclic number.

It is not a de Polignac number, because 71268713 - 2⁶ = 71268649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71268719) 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, 367268 + ... + 367461.

It is an arithmetic number, because the mean of its divisors is an integer number (18000885).

Almost surely, 2^71268713 is an apocalyptic number.

It is an amenable number.

71268713 is a deficient number, since it is larger than the sum of its proper divisors (734827).

71268713 is an equidigital number, since it uses as much as digits as its factorization.

71268713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734826.

The product of its digits is 14112, while the sum is 35.

The square root of 71268713 is about 8442.0798977503. The cubic root of 71268713 is about 414.6035076996.

The spelling of 71268713 in words is "seventy-one million, two hundred sixty-eight thousand, seven hundred thirteen".