71208064 has 16 divisors (see below), whose sum is σ = 141860070. Its totient is φ = 35603968.

The previous prime is 71208061. The next prime is 71208133. The reversal of 71208064 is 46080217.

It can be written as a sum of positive squares in only one way, i.e., 67240000 + 3968064 = 8200^2 + 1992^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (71208061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278029 + ... + 278284.

Almost surely, 2^71208064 is an apocalyptic number.

It is an amenable number.

71208064 is a deficient number, since it is larger than the sum of its proper divisors (70652006).

71208064 is an equidigital number, since it uses as much as digits as its factorization.

71208064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556327 (or 556315 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 71208064 is about 8438.4870681894. The cubic root of 71208064 is about 414.4858664362.

The spelling of 71208064 in words is "seventy-one million, two hundred eight thousand, sixty-four".