71064277 has 2 divisors, whose sum is σ = 71064278. Its totient is φ = 71064276.

The previous prime is 71064271. The next prime is 71064289. The reversal of 71064277 is 77246017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46867716 + 24196561 = 6846^2 + 4919^2 .

It is a cyclic number.

It is not a de Polignac number, because 71064277 - 2³ = 71064269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71064271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35532138 + 35532139.

It is an arithmetic number, because the mean of its divisors is an integer number (35532139).

Almost surely, 2^71064277 is an apocalyptic number.

It is an amenable number.

71064277 is a deficient number, since it is larger than the sum of its proper divisors (1).

71064277 is an equidigital number, since it uses as much as digits as its factorization.

71064277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 71064277 is about 8429.9630485548. The cubic root of 71064277 is about 414.2066946906.

The spelling of 71064277 in words is "seventy-one million, sixty-four thousand, two hundred seventy-seven".