285212673 has 48 divisors (see below), whose sum is σ = 442091520. Its totient is φ = 176802912.

The previous prime is 285212659. The next prime is 285212677. The reversal of 285212673 is 376212582.

It is not a de Polignac number, because 285212673 - 2⁴ = 285212657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285212677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1749690 + ... + 1749852.

It is an arithmetic number, because the mean of its divisors is an integer number (9210240).

It is a Proth number, since it is equal to 17 ⋅ 2²⁴ + 1 and 17 < 2²⁴.

Almost surely, 2^285212673 is an apocalyptic number.

285212673 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

285212673 is a deficient number, since it is larger than the sum of its proper divisors (156878847).

285212673 is a wasteful number, since it uses less digits than its factorization.

285212673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 375 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 285212673 is about 16888.2406721363. The cubic root of 285212673 is about 658.2480879778.

Subtracting 285212673 from its reverse (376212582), we obtain a palindrome (90999909).

The spelling of 285212673 in words is "two hundred eighty-five million, two hundred twelve thousand, six hundred seventy-three".