71895071 has 2 divisors, whose sum is σ = 71895072. Its totient is φ = 71895070.

The previous prime is 71895067. The next prime is 71895077. The reversal of 71895071 is 17059817.

It is a weak prime.

It is an emirp because it is prime and its reverse (17059817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71895071 - 2² = 71895067 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71895077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35947535 + 35947536.

It is an arithmetic number, because the mean of its divisors is an integer number (35947536).

Almost surely, 2^71895071 is an apocalyptic number.

71895071 is a deficient number, since it is larger than the sum of its proper divisors (1).

71895071 is an equidigital number, since it uses as much as digits as its factorization.

71895071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 71895071 is about 8479.0961192806. The cubic root of 71895071 is about 415.8145727319.

The spelling of 71895071 in words is "seventy-one million, eight hundred ninety-five thousand, seventy-one".