5729985 has 24 divisors (see below), whose sum is σ = 9993984. Its totient is φ = 3036960.

The previous prime is 5729959. The next prime is 5729987. The reversal of 5729985 is 5899275.

It is a happy number.

It is not a de Polignac number, because 5729985 - 2⁵ = 5729953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5729985.

It is not an unprimeable number, because it can be changed into a prime (5729987) 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 23 ways as a sum of consecutive naturals, for example, 9750 + ... + 10320.

It is an arithmetic number, because the mean of its divisors is an integer number (416416).

Almost surely, 2^5729985 is an apocalyptic number.

It is an amenable number.

5729985 is a deficient number, since it is larger than the sum of its proper divisors (4263999).

5729985 is a wasteful number, since it uses less digits than its factorization.

5729985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 802 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 5729985 is about 2393.7387075452. The cubic root of 5729985 is about 178.9442831906.

The spelling of 5729985 in words is "five million, seven hundred twenty-nine thousand, nine hundred eighty-five".