285376729 has 8 divisors (see below), whose sum is σ = 312952320. Its totient is φ = 258073200.

The previous prime is 285376703. The next prime is 285376753. The reversal of 285376729 is 927673582.

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

It is not a de Polignac number, because 285376729 - 2⁷ = 285376601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285376759) 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, 65814 + ... + 70015.

It is an arithmetic number, because the mean of its divisors is an integer number (39119040).

Almost surely, 2^285376729 is an apocalyptic number.

It is an amenable number.

285376729 is a deficient number, since it is larger than the sum of its proper divisors (27575591).

285376729 is a wasteful number, since it uses less digits than its factorization.

285376729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136031.

The product of its digits is 1270080, while the sum is 49.

The square root of 285376729 is about 16893.0970813525. The cubic root of 285376729 is about 658.3742731719.

The spelling of 285376729 in words is "two hundred eighty-five million, three hundred seventy-six thousand, seven hundred twenty-nine".