71299711 has 8 divisors (see below), whose sum is σ = 81587744. Its totient is φ = 61037280.

The previous prime is 71299699. The next prime is 71299729. The reversal of 71299711 is 11799217.

71299711 is a nontrivial binomial coefficient, being equal to C(11942, 2).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71299711 - 2¹⁹ = 70775423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71299211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 11941.

It is an arithmetic number, because the mean of its divisors is an integer number (10198468).

Almost surely, 2^71299711 is an apocalyptic number.

71299711 is the 11941-st triangular number and also the 5971-st hexagonal number.

71299711 is the 3981-st centered nonagonal number.

71299711 is a deficient number, since it is larger than the sum of its proper divisors (10288033).

71299711 is a wasteful number, since it uses less digits than its factorization.

71299711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12801.

The product of its digits is 7938, while the sum is 37.

The square root of 71299711 is about 8443.9156201374. The cubic root of 71299711 is about 414.6636089518.

It can be divided in two parts, 71299 and 711, that added together give a triangular number (72010 = T₃₇₉).

The spelling of 71299711 in words is "seventy-one million, two hundred ninety-nine thousand, seven hundred eleven".