830545 has 8 divisors (see below), whose sum is σ = 1020096. Its totient is φ = 648816.

The previous prime is 830513. The next prime is 830549. The reversal of 830545 is 545038.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 830545 - 2⁵ = 830513 is a prime.

It is a d-powerful number, because it can be written as 8⁶ + 3¹¹ + 5⁴ + 0 + 4 + 5⁸ .

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

830545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (830549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1717 + ... + 2146.

It is an arithmetic number, because the mean of its divisors is an integer number (127512).

2⁸³⁰⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

830545 is a deficient number, since it is larger than the sum of its proper divisors (189551).

830545 is a wasteful number, since it uses less digits than its factorization.

830545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 830545 is about 911.3424164385. The cubic root of 830545 is about 93.9985287230.

The spelling of 830545 in words is "eight hundred thirty thousand, five hundred forty-five".