830815 has 8 divisors (see below), whose sum is σ = 1008720. Its totient is φ = 656832.

The previous prime is 830801. The next prime is 830827. The reversal of 830815 is 518038.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-830815 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 830815.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 489 + ... + 1378.

It is an arithmetic number, because the mean of its divisors is an integer number (126090).

2⁸³⁰⁸¹⁵ is an apocalyptic number.

830815 is a deficient number, since it is larger than the sum of its proper divisors (177905).

830815 is a wasteful number, since it uses less digits than its factorization.

830815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 830815 is about 911.4905375263. The cubic root of 830815 is about 94.0087135426.

The spelling of 830815 in words is "eight hundred thirty thousand, eight hundred fifteen".