830551 has 2 divisors, whose sum is σ = 830552. Its totient is φ = 830550.

The previous prime is 830549. The next prime is 830561. The reversal of 830551 is 155038.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 830551 - 2¹ = 830549 is a prime.

Together with 830549, it forms a pair of twin primes.

830551 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415275 + 415276.

It is an arithmetic number, because the mean of its divisors is an integer number (415276).

2⁸³⁰⁵⁵¹ is an apocalyptic number.

830551 is a deficient number, since it is larger than the sum of its proper divisors (1).

830551 is an equidigital number, since it uses as much as digits as its factorization.

830551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 830551 is about 911.3457082798. The cubic root of 830551 is about 93.9987550763.

Adding to 830551 its reverse (155038), we get a palindrome (985589).

The spelling of 830551 in words is "eight hundred thirty thousand, five hundred fifty-one".