71004469 has 2 divisors, whose sum is σ = 71004470. Its totient is φ = 71004468.

The previous prime is 71004457. The next prime is 71004491. The reversal of 71004469 is 96440017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61622500 + 9381969 = 7850^2 + 3063^2 .

It is an emirp because it is prime and its reverse (96440017) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71004469 - 2⁹ = 71003957 is a prime.

It is a super-2 number, since 2×71004469² = 10083269235943922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71004469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71004569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35502234 + 35502235.

It is an arithmetic number, because the mean of its divisors is an integer number (35502235).

Almost surely, 2^71004469 is an apocalyptic number.

It is an amenable number.

71004469 is a deficient number, since it is larger than the sum of its proper divisors (1).

71004469 is an equidigital number, since it uses as much as digits as its factorization.

71004469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 71004469 is about 8426.4149553651. The cubic root of 71004469 is about 414.0904627011.

The spelling of 71004469 in words is "seventy-one million, four thousand, four hundred sixty-nine".