849729 has 8 divisors (see below), whose sum is σ = 1172160. Its totient is φ = 546896.

The previous prime is 849727. The next prime is 849731. The reversal of 849729 is 927948.

It is an interprime number because it is at equal distance from previous prime (849727) and next prime (849731).

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 849729 - 2¹ = 849727 is a prime.

It is a d-powerful number, because it can be written as 8 + 4⁹ + 7⁵ + 9⁴ + 2¹⁵ + 9⁶ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 849729.

It is not an unprimeable number, because it can be changed into a prime (849721) 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 in 7 ways as a sum of consecutive naturals, for example, 4797 + ... + 4970.

It is an arithmetic number, because the mean of its divisors is an integer number (146520).

2⁸⁴⁹⁷²⁹ is an apocalyptic number.

It is an amenable number.

849729 is a deficient number, since it is larger than the sum of its proper divisors (322431).

849729 is a wasteful number, since it uses less digits than its factorization.

849729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9799.

The product of its digits is 36288, while the sum is 39.

The square root of 849729 is about 921.8074636278. The cubic root of 849729 is about 94.7167556018.

The spelling of 849729 in words is "eight hundred forty-nine thousand, seven hundred twenty-nine".