71727413 has 4 divisors (see below), whose sum is σ = 75502560. Its totient is φ = 67952268.

The previous prime is 71727407. The next prime is 71727427. The reversal of 71727413 is 31472717.

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.

It is a cyclic number.

It is not a de Polignac number, because 71727413 - 2⁸ = 71727157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71727413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71727433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1887545 + ... + 1887582.

It is an arithmetic number, because the mean of its divisors is an integer number (18875640).

Almost surely, 2^71727413 is an apocalyptic number.

It is an amenable number.

71727413 is a deficient number, since it is larger than the sum of its proper divisors (3775147).

71727413 is a wasteful number, since it uses less digits than its factorization.

71727413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775146.

The product of its digits is 8232, while the sum is 32.

The square root of 71727413 is about 8469.2037996496. The cubic root of 71727413 is about 415.4910971441.

The spelling of 71727413 in words is "seventy-one million, seven hundred twenty-seven thousand, four hundred thirteen".