285678485 has 8 divisors (see below), whose sum is σ = 353872896. Its totient is φ = 221170320.

The previous prime is 285678479. The next prime is 285678493. The reversal of 285678485 is 584876582.

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

It is not a de Polignac number, because 285678485 - 2¹⁰ = 285677461 is a prime.

It is a super-2 number, since 2×285678485² = 163224393583790450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 921389 + ... + 921698.

It is an arithmetic number, because the mean of its divisors is an integer number (44234112).

Almost surely, 2^285678485 is an apocalyptic number.

It is an amenable number.

285678485 is a deficient number, since it is larger than the sum of its proper divisors (68194411).

285678485 is a wasteful number, since it uses less digits than its factorization.

285678485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843123.

The product of its digits is 4300800, while the sum is 53.

The square root of 285678485 is about 16902.0260619844. The cubic root of 285678485 is about 658.6062453739.

The spelling of 285678485 in words is "two hundred eighty-five million, six hundred seventy-eight thousand, four hundred eighty-five".