71308064 has 48 divisors (see below), whose sum is σ = 156492000. Its totient is φ = 31785984.

The previous prime is 71308043. The next prime is 71308067. The reversal of 71308064 is 46080317.

It is not an unprimeable number, because it can be changed into a prime (71308067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6887 + ... + 13785.

It is an arithmetic number, because the mean of its divisors is an integer number (3260250).

Almost surely, 2^71308064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71308064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78246000).

71308064 is an abundant number, since it is smaller than the sum of its proper divisors (85183936).

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

71308064 is a wasteful number, since it uses less digits than its factorization.

71308064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6945 (or 6937 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 71308064 is about 8444.4102221529. The cubic root of 71308064 is about 414.6798013965.

The spelling of 71308064 in words is "seventy-one million, three hundred eight thousand, sixty-four".