212830 has 8 divisors (see below), whose sum is σ = 383112. Its totient is φ = 85128.

The previous prime is 212827. The next prime is 212837. The reversal of 212830 is 38212.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10632 + ... + 10651.

It is an arithmetic number, because the mean of its divisors is an integer number (47889).

2²¹²⁸³⁰ is an apocalyptic number.

212830 is a deficient number, since it is larger than the sum of its proper divisors (170282).

212830 is a wasteful number, since it uses less digits than its factorization.

212830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21290.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 212830 is about 461.3350192647. The cubic root of 212830 is about 59.7050337732.

The spelling of 212830 in words is "two hundred twelve thousand, eight hundred thirty".