830642 has 8 divisors (see below), whose sum is σ = 1311600. Its totient is φ = 393444.

The previous prime is 830639. The next prime is 830657. The reversal of 830642 is 246038.

It is a happy number.

830642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×830642² = 1379932264328, which contains 22 as substring.

It is an Ulam 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, 10892 + ... + 10967.

It is an arithmetic number, because the mean of its divisors is an integer number (163950).

2⁸³⁰⁶⁴² is an apocalyptic number.

830642 is a deficient number, since it is larger than the sum of its proper divisors (480958).

830642 is a wasteful number, since it uses less digits than its factorization.

830642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21880.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 830642 is about 911.3956330815. The cubic root of 830642 is about 94.0021879678.

The spelling of 830642 in words is "eight hundred thirty thousand, six hundred forty-two".