71675729 has 8 divisors (see below), whose sum is σ = 73627680. Its totient is φ = 69749856.

The previous prime is 71675719. The next prime is 71675753. The reversal of 71675729 is 92757617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71675729 - 2⁸ = 71675473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71675729.

It is not an unprimeable number, because it can be changed into a prime (71675719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884 + ... + 12005.

It is an arithmetic number, because the mean of its divisors is an integer number (9203460).

Almost surely, 2^71675729 is an apocalyptic number.

It is an amenable number.

71675729 is a deficient number, since it is larger than the sum of its proper divisors (1951951).

71675729 is a wasteful number, since it uses less digits than its factorization.

71675729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13039.

The product of its digits is 185220, while the sum is 44.

The square root of 71675729 is about 8466.1519594205. The cubic root of 71675729 is about 415.3912775593.

The spelling of 71675729 in words is "seventy-one million, six hundred seventy-five thousand, seven hundred twenty-nine".