71459447 has 2 divisors, whose sum is σ = 71459448. Its totient is φ = 71459446.

The previous prime is 71459429. The next prime is 71459473. The reversal of 71459447 is 74495417.

It is a weak prime.

It is an emirp because it is prime and its reverse (74495417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71459447 - 2¹⁸ = 71197303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71459407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35729723 + 35729724.

It is an arithmetic number, because the mean of its divisors is an integer number (35729724).

Almost surely, 2^71459447 is an apocalyptic number.

71459447 is a deficient number, since it is larger than the sum of its proper divisors (1).

71459447 is an equidigital number, since it uses as much as digits as its factorization.

71459447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 41.

The square root of 71459447 is about 8453.3689733739. The cubic root of 71459447 is about 414.9730412642.

The spelling of 71459447 in words is "seventy-one million, four hundred fifty-nine thousand, four hundred forty-seven".