393263 has 8 divisors (see below), whose sum is σ = 428400. Its totient is φ = 360984.

The previous prime is 393257. The next prime is 393271. The reversal of 393263 is 362393.

It is not a de Polignac number, because 393263 - 2⁴ = 393247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2108 + ... + 2286.

It is an arithmetic number, because the mean of its divisors is an integer number (53550).

2³⁹³²⁶³ is an apocalyptic number.

393263 is a deficient number, since it is larger than the sum of its proper divisors (35137).

393263 is an equidigital number, since it uses as much as digits as its factorization.

393263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 192 counting only the distinct ones).

The product of its digits is 2916, while the sum is 26.

The square root of 393263 is about 627.1068489500. The cubic root of 393263 is about 73.2646303291.

It can be divided in two parts, 393 and 263, that added together give a palindrome (656).

The spelling of 393263 in words is "three hundred ninety-three thousand, two hundred sixty-three".