830331 has 28 divisors (see below), whose sum is σ = 1337832. Its totient is φ = 513216.
The previous prime is 830329. The next prime is 830339. The reversal of 830331 is 133038.
It is not a de Polignac number, because 830331 - 21 = 830329 is a prime.
It is a super-2 number, since 2×8303312 = 1378899139122, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (830339) 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 27 ways as a sum of consecutive naturals, for example, 12360 + ... + 12426.
2830331 is an apocalyptic number.
830331 is a gapful number since it is divisible by the number (81) formed by its first and last digit.
830331 is a deficient number, since it is larger than the sum of its proper divisors (507501).
830331 is an equidigital number, since it uses as much as digits as its factorization.
830331 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 102 (or 87 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 830331 is about 911.2249996571. The cubic root of 830331 is about 93.9904547422.
Adding to 830331 its reverse (133038), we get a palindrome (963369).
The spelling of 830331 in words is "eight hundred thirty thousand, three hundred thirty-one".
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