71047601 has 2 divisors, whose sum is σ = 71047602. Its totient is φ = 71047600.

The previous prime is 71047591. The next prime is 71047619. The reversal of 71047601 is 10674017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69222400 + 1825201 = 8320^2 + 1351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71047601 is a prime.

It is not a weakly prime, because it can be changed into another prime (71017601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35523800 + 35523801.

It is an arithmetic number, because the mean of its divisors is an integer number (35523801).

Almost surely, 2^71047601 is an apocalyptic number.

It is an amenable number.

71047601 is a deficient number, since it is larger than the sum of its proper divisors (1).

71047601 is an equidigital number, since it uses as much as digits as its factorization.

71047601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 71047601 is about 8428.9738995918. The cubic root of 71047601 is about 414.1742927981.

The spelling of 71047601 in words is "seventy-one million, forty-seven thousand, six hundred one".