283645 has 16 divisors (see below), whose sum is σ = 373248. Its totient is φ = 206080.

The previous prime is 283639. The next prime is 283669. The reversal of 283645 is 546382.

It is not a de Polignac number, because 283645 - 2³ = 283637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3960 + ... + 4030.

It is an arithmetic number, because the mean of its divisors is an integer number (23328).

2²⁸³⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

283645 is a deficient number, since it is larger than the sum of its proper divisors (89603).

283645 is a wasteful number, since it uses less digits than its factorization.

283645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140.

The product of its digits is 5760, while the sum is 28.

The square root of 283645 is about 532.5833268137. The cubic root of 283645 is about 65.7039850179.

Subtracting from 283645 its product of digits (5760), we obtain a triangular number (277885 = T₇₄₅).

The spelling of 283645 in words is "two hundred eighty-three thousand, six hundred forty-five".