285374865 has 16 divisors (see below), whose sum is σ = 457113600. Its totient is φ = 152028672.

The previous prime is 285374849. The next prime is 285374899. The reversal of 285374865 is 568473582.

It is not a de Polignac number, because 285374865 - 2⁴ = 285374849 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3696 + ... + 24174.

It is an arithmetic number, because the mean of its divisors is an integer number (28569600).

Almost surely, 2^285374865 is an apocalyptic number.

It is an amenable number.

285374865 is a deficient number, since it is larger than the sum of its proper divisors (171738735).

285374865 is a wasteful number, since it uses less digits than its factorization.

285374865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21416.

The product of its digits is 1612800, while the sum is 48.

The square root of 285374865 is about 16893.0419107987. The cubic root of 285374865 is about 658.3728397307.

The spelling of 285374865 in words is "two hundred eighty-five million, three hundred seventy-four thousand, eight hundred sixty-five".