363391 has 4 divisors (see below), whose sum is σ = 415312. Its totient is φ = 311472.

The previous prime is 363379. The next prime is 363397. The reversal of 363391 is 193363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193363 = 19 ⋅10177.

It is not a de Polignac number, because 363391 - 2⁵ = 363359 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (363397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25950 + ... + 25963.

It is an arithmetic number, because the mean of its divisors is an integer number (103828).

2³⁶³³⁹¹ is an apocalyptic number.

363391 is a deficient number, since it is larger than the sum of its proper divisors (51921).

363391 is an equidigital number, since it uses as much as digits as its factorization.

363391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51920.

The product of its digits is 1458, while the sum is 25.

The square root of 363391 is about 602.8192100456. The cubic root of 363391 is about 71.3605281545.

The spelling of 363391 in words is "three hundred sixty-three thousand, three hundred ninety-one".