71004729 has 12 divisors (see below), whose sum is σ = 99919536. Its totient is φ = 44844408.

The previous prime is 71004727. The next prime is 71004763. The reversal of 71004729 is 92740017.

It is not a de Polignac number, because 71004729 - 2¹ = 71004727 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71004696 and 71004705.

It is not an unprimeable number, because it can be changed into a prime (71004727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31699 + ... + 33864.

It is an arithmetic number, because the mean of its divisors is an integer number (8326628).

Almost surely, 2^71004729 is an apocalyptic number.

It is an amenable number.

71004729 is a deficient number, since it is larger than the sum of its proper divisors (28914807).

71004729 is a wasteful number, since it uses less digits than its factorization.

71004729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65604 (or 65585 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 71004729 is about 8426.4303830270. The cubic root of 71004729 is about 414.0909681312.

The spelling of 71004729 in words is "seventy-one million, four thousand, seven hundred twenty-nine".