830045 has 8 divisors (see below), whose sum is σ = 1020600. Its totient is φ = 647680.

The previous prime is 830041. The next prime is 830051. The reversal of 830045 is 540038.

It can be written as a sum of positive squares in 4 ways, for example, as 7396 + 822649 = 86^2 + 907^2 .

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

It is not a de Polignac number, because 830045 - 2² = 830041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 829999 and 830026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830041) 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 in 7 ways as a sum of consecutive naturals, for example, 1820 + ... + 2229.

It is an arithmetic number, because the mean of its divisors is an integer number (127575).

2⁸³⁰⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

830045 is a deficient number, since it is larger than the sum of its proper divisors (190555).

830045 is a wasteful number, since it uses less digits than its factorization.

830045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 830045 is about 911.0680545382. The cubic root of 830045 is about 93.9796621158.

The spelling of 830045 in words is "eight hundred thirty thousand, forty-five".