71706378 has 8 divisors (see below), whose sum is σ = 143412768. Its totient is φ = 23902124.

The previous prime is 71706373. The next prime is 71706389. The reversal of 71706378 is 87360717.

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

71706378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (71706373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5975526 + ... + 5975537.

It is an arithmetic number, because the mean of its divisors is an integer number (17926596).

Almost surely, 2^71706378 is an apocalyptic number.

71706378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71706378 is a wasteful number, since it uses less digits than its factorization.

71706378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11951068.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 71706378 is about 8467.9618563147. The cubic root of 71706378 is about 415.4504771108.

The spelling of 71706378 in words is "seventy-one million, seven hundred six thousand, three hundred seventy-eight".