830215 has 4 divisors (see below), whose sum is σ = 996264. Its totient is φ = 664168.

The previous prime is 830191. The next prime is 830233. The reversal of 830215 is 512038.

It is a happy number.

830215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 512038 = 2 ⋅256019.

It is a cyclic number.

It is not a de Polignac number, because 830215 - 2¹⁹ = 305927 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 830192 and 830201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83017 + ... + 83026.

It is an arithmetic number, because the mean of its divisors is an integer number (249066).

2⁸³⁰²¹⁵ is an apocalyptic number.

830215 is a deficient number, since it is larger than the sum of its proper divisors (166049).

830215 is a wasteful number, since it uses less digits than its factorization.

830215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166048.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 830215 is about 911.1613468536. The cubic root of 830215 is about 93.9860776121.

The spelling of 830215 in words is "eight hundred thirty thousand, two hundred fifteen".