71378711 has 8 divisors (see below), whose sum is σ = 72375744. Its totient is φ = 70387200.

The previous prime is 71378707. The next prime is 71378719. The reversal of 71378711 is 11787317.

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 71378711 - 2² = 71378707 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 (71378719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29186 + ... + 31536.

It is an arithmetic number, because the mean of its divisors is an integer number (9046968).

Almost surely, 2^71378711 is an apocalyptic number.

71378711 is a deficient number, since it is larger than the sum of its proper divisors (997033).

71378711 is a wasteful number, since it uses less digits than its factorization.

71378711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761.

The product of its digits is 8232, while the sum is 35.

The square root of 71378711 is about 8448.5922495999. The cubic root of 71378711 is about 414.8167013619.

The spelling of 71378711 in words is "seventy-one million, three hundred seventy-eight thousand, seven hundred eleven".