393284 has 6 divisors (see below), whose sum is σ = 688254. Its totient is φ = 196640.

The previous prime is 393271. The next prime is 393287. The reversal of 393284 is 482393.

It can be written as a sum of positive squares in only one way, i.e., 386884 + 6400 = 622^2 + 80^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49157 + ... + 49164.

It is an arithmetic number, because the mean of its divisors is an integer number (114709).

2³⁹³²⁸⁴ is an apocalyptic number.

It is an amenable number.

393284 is a deficient number, since it is larger than the sum of its proper divisors (294970).

393284 is a wasteful number, since it uses less digits than its factorization.

393284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98325 (or 98323 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 393284 is about 627.1235922846. The cubic root of 393284 is about 73.2659344011.

The spelling of 393284 in words is "three hundred ninety-three thousand, two hundred eighty-four".