285484961 has 16 divisors (see below), whose sum is σ = 314202240. Its totient is φ = 258182400.

The previous prime is 285484957. The next prime is 285484967. The reversal of 285484961 is 169484582.

It is not a de Polignac number, because 285484961 - 2² = 285484957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (285484967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110636 + ... + 113186.

It is an arithmetic number, because the mean of its divisors is an integer number (19637640).

Almost surely, 2^285484961 is an apocalyptic number.

It is an amenable number.

285484961 is a deficient number, since it is larger than the sum of its proper divisors (28717279).

285484961 is a wasteful number, since it uses less digits than its factorization.

285484961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824.

The product of its digits is 552960, while the sum is 47.

The square root of 285484961 is about 16896.3002163195. The cubic root of 285484961 is about 658.4574943444.

The spelling of 285484961 in words is "two hundred eighty-five million, four hundred eighty-four thousand, nine hundred sixty-one".