71506327 has 2 divisors, whose sum is σ = 71506328. Its totient is φ = 71506326.

The previous prime is 71506321. The next prime is 71506343. The reversal of 71506327 is 72360517.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71506327 is a prime.

It is a super-2 number, since 2×71506327² = 10226309602061858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71506321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35753163 + 35753164.

It is an arithmetic number, because the mean of its divisors is an integer number (35753164).

Almost surely, 2^71506327 is an apocalyptic number.

71506327 is a deficient number, since it is larger than the sum of its proper divisors (1).

71506327 is an equidigital number, since it uses as much as digits as its factorization.

71506327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 71506327 is about 8456.1413777207. The cubic root of 71506327 is about 415.0637672371.

The spelling of 71506327 in words is "seventy-one million, five hundred six thousand, three hundred twenty-seven".