71968078 has 16 divisors (see below), whose sum is σ = 132864480. Its totient is φ = 28470816.

The previous prime is 71968069. The next prime is 71968087. The reversal of 71968078 is 87086917.

It is an interprime number because it is at equal distance from previous prime (71968069) and next prime (71968087).

It is a congruent number.

It is an unprimeable number.

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, 197533 + ... + 197896.

It is an arithmetic number, because the mean of its divisors is an integer number (8304030).

Almost surely, 2^71968078 is an apocalyptic number.

71968078 is a deficient number, since it is larger than the sum of its proper divisors (60896402).

71968078 is a wasteful number, since it uses less digits than its factorization.

71968078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395451.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 71968078 is about 8483.4001438103. The cubic root of 71968078 is about 415.9552736369.

The spelling of 71968078 in words is "seventy-one million, nine hundred sixty-eight thousand, seventy-eight".