285728127 has 8 divisors (see below), whose sum is σ = 381233664. Its totient is φ = 190354008.

The previous prime is 285728123. The next prime is 285728143. The reversal of 285728127 is 721827582.

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

It is not a de Polignac number, because 285728127 - 2² = 285728123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285728123) 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, 27663 + ... + 36560.

It is an arithmetic number, because the mean of its divisors is an integer number (47654208).

Almost surely, 2^285728127 is an apocalyptic number.

285728127 is a deficient number, since it is larger than the sum of its proper divisors (95505537).

285728127 is a wasteful number, since it uses less digits than its factorization.

285728127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65709.

The product of its digits is 125440, while the sum is 42.

The square root of 285728127 is about 16903.4945203647. The cubic root of 285728127 is about 658.6443915643.

The spelling of 285728127 in words is "two hundred eighty-five million, seven hundred twenty-eight thousand, one hundred twenty-seven".