71316878 has 4 divisors (see below), whose sum is σ = 106975320. Its totient is φ = 35658438.

The previous prime is 71316863. The next prime is 71316893. The reversal of 71316878 is 87861317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87861317 = 1571 ⋅55927.

It is an interprime number because it is at equal distance from previous prime (71316863) and next prime (71316893).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17829218 + ... + 17829221.

It is an arithmetic number, because the mean of its divisors is an integer number (26743830).

Almost surely, 2^71316878 is an apocalyptic number.

71316878 is a deficient number, since it is larger than the sum of its proper divisors (35658442).

71316878 is a wasteful number, since it uses less digits than its factorization.

71316878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35658441.

The product of its digits is 56448, while the sum is 41.

The square root of 71316878 is about 8444.9320897210. The cubic root of 71316878 is about 414.6968861271.

The spelling of 71316878 in words is "seventy-one million, three hundred sixteen thousand, eight hundred seventy-eight".