830745 has 12 divisors (see below), whose sum is σ = 1440036. Its totient is φ = 443040.

The previous prime is 830743. The next prime is 830777. The reversal of 830745 is 547038.

830745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 145161 + 685584 = 381^2 + 828^2 .

It is not a de Polignac number, because 830745 - 2¹ = 830743 is a prime.

It is a d-powerful number, because it can be written as 8³ + 3⁸ + 7⁷ + 0 + 4 + 5³ .

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

It is not an unprimeable number, because it can be changed into a prime (830741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9186 + ... + 9275.

It is an arithmetic number, because the mean of its divisors is an integer number (120003).

2⁸³⁰⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

830745 is a deficient number, since it is larger than the sum of its proper divisors (609291).

830745 is a wasteful number, since it uses less digits than its factorization.

830745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18472 (or 18469 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 830745 is about 911.4521380742. The cubic root of 830745 is about 94.0060732458.

The spelling of 830745 in words is "eight hundred thirty thousand, seven hundred forty-five".