8675729 has 8 divisors (see below), whose sum is σ = 9360360. Its totient is φ = 8010496.

The previous prime is 8675699. The next prime is 8675743. The reversal of 8675729 is 9275768.

It can be written as a sum of positive squares in 4 ways, for example, as 6115729 + 2560000 = 2473^2 + 1600^2 .

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 8675729 - 2⁸ = 8675473 is a prime.

It is a super-3 number, since 3×8675729³ (a number of 22 digits) contains 333 as substring.

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 8675729.

It is not an unprimeable number, because it can be changed into a prime (8675749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3914 + ... + 5715.

It is an arithmetic number, because the mean of its divisors is an integer number (1170045).

Almost surely, 2^8675729 is an apocalyptic number.

It is an amenable number.

8675729 is a deficient number, since it is larger than the sum of its proper divisors (684631).

8675729 is a wasteful number, since it uses less digits than its factorization.

8675729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9699.

The product of its digits is 211680, while the sum is 44.

The square root of 8675729 is about 2945.4590474152. The cubic root of 8675729 is about 205.4795752083.

The spelling of 8675729 in words is "eight million, six hundred seventy-five thousand, seven hundred twenty-nine".