985281 has 16 divisors (see below), whose sum is σ = 1456320. Its totient is φ = 587520.

The previous prime is 985279. The next prime is 985291. The reversal of 985281 is 182589.

It is a happy number.

It is not a de Polignac number, because 985281 - 2¹ = 985279 is a prime.

It is a super-2 number, since 2×985281² = 1941557297922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 985281.

It is not an unprimeable number, because it can be changed into a prime (985291) 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, 2205 + ... + 2613.

It is an arithmetic number, because the mean of its divisors is an integer number (91020).

2⁹⁸⁵²⁸¹ is an apocalyptic number.

It is an amenable number.

985281 is a deficient number, since it is larger than the sum of its proper divisors (471039).

985281 is a wasteful number, since it uses less digits than its factorization.

985281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496.

The product of its digits is 5760, while the sum is 33.

The square root of 985281 is about 992.6132177238. The cubic root of 985281 is about 99.5069395764.

The spelling of 985281 in words is "nine hundred eighty-five thousand, two hundred eighty-one".