495321 has 8 divisors (see below), whose sum is σ = 676704. Its totient is φ = 322080.

The previous prime is 495307. The next prime is 495323. The reversal of 495321 is 123594.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 495321 - 2⁵ = 495289 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 495291 and 495300.

It is not an unprimeable number, because it can be changed into a prime (495323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1891 + ... + 2136.

It is an arithmetic number, because the mean of its divisors is an integer number (84588).

2⁴⁹⁵³²¹ is an apocalyptic number.

495321 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

495321 is a deficient number, since it is larger than the sum of its proper divisors (181383).

495321 is a wasteful number, since it uses less digits than its factorization.

495321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071.

The product of its digits is 1080, while the sum is 24.

The square root of 495321 is about 703.7904517681. The cubic root of 495321 is about 79.1216946177.

The spelling of 495321 in words is "four hundred ninety-five thousand, three hundred twenty-one".