71072008 has 32 divisors (see below), whose sum is σ = 160315200. Its totient is φ = 28855872.

The previous prime is 71071999. The next prime is 71072017. The reversal of 71072008 is 80027017.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71071999) and next prime (71072017).

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, 32335 + ... + 34462.

It is an arithmetic number, because the mean of its divisors is an integer number (5009850).

Almost surely, 2^71072008 is an apocalyptic number.

It is an amenable number.

71072008 is an abundant number, since it is smaller than the sum of its proper divisors (89243192).

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

71072008 is a wasteful number, since it uses less digits than its factorization.

71072008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66829 (or 66825 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 71072008 is about 8430.4215790196. The cubic root of 71072008 is about 414.2217145007.

The spelling of 71072008 in words is "seventy-one million, seventy-two thousand, eight".