71447323 has 2 divisors, whose sum is σ = 71447324. Its totient is φ = 71447322.

The previous prime is 71447317. The next prime is 71447347. The reversal of 71447323 is 32374417.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71447323 - 2⁵ = 71447291 is a prime.

It is not a weakly prime, because it can be changed into another prime (71447303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35723661 + 35723662.

It is an arithmetic number, because the mean of its divisors is an integer number (35723662).

Almost surely, 2^71447323 is an apocalyptic number.

71447323 is a deficient number, since it is larger than the sum of its proper divisors (1).

71447323 is an equidigital number, since it uses as much as digits as its factorization.

71447323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 31.

The square root of 71447323 is about 8452.6518324133. The cubic root of 71447323 is about 414.9495714599.

The spelling of 71447323 in words is "seventy-one million, four hundred forty-seven thousand, three hundred twenty-three".