71716340 has 12 divisors (see below), whose sum is σ = 150604356. Its totient is φ = 28686528.

The previous prime is 71716327. The next prime is 71716373. The reversal of 71716340 is 4361717.

It can be written as a sum of positive squares in 2 ways, for example, as 14047504 + 57668836 = 3748^2 + 7594^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1792889 + ... + 1792928.

It is an arithmetic number, because the mean of its divisors is an integer number (12550363).

Almost surely, 2^71716340 is an apocalyptic number.

It is an amenable number.

71716340 is an abundant number, since it is smaller than the sum of its proper divisors (78888016).

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

71716340 is a wasteful number, since it uses less digits than its factorization.

71716340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3585826 (or 3585824 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 71716340 is about 8468.5500529902. The cubic root of 71716340 is about 415.4697154088.

The spelling of 71716340 in words is "seventy-one million, seven hundred sixteen thousand, three hundred forty".