285853197 has 32 divisors (see below), whose sum is σ = 441348352. Its totient is φ = 161201664.

The previous prime is 285853193. The next prime is 285853213. The reversal of 285853197 is 791358582.

It is not a de Polignac number, because 285853197 - 2² = 285853193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285853193) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 913113 + ... + 913425.

It is an arithmetic number, because the mean of its divisors is an integer number (13792136).

Almost surely, 2^285853197 is an apocalyptic number.

It is an amenable number.

285853197 is a deficient number, since it is larger than the sum of its proper divisors (155495155).

285853197 is a wasteful number, since it uses less digits than its factorization.

285853197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757.

The product of its digits is 604800, while the sum is 48.

The square root of 285853197 is about 16907.1936464926. The cubic root of 285853197 is about 658.7404789865.

The spelling of 285853197 in words is "two hundred eighty-five million, eight hundred fifty-three thousand, one hundred ninety-seven".