212830473 has 8 divisors (see below), whose sum is σ = 283847200. Its totient is φ = 141850368.

The previous prime is 212830441. The next prime is 212830481. The reversal of 212830473 is 374038212.

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

It is not a de Polignac number, because 212830473 - 2⁵ = 212830441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212830473.

It is not an unprimeable number, because it can be changed into a prime (212830873) 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 7 ways as a sum of consecutive naturals, for example, 10338 + ... + 23076.

It is an arithmetic number, because the mean of its divisors is an integer number (35480900).

Almost surely, 2^212830473 is an apocalyptic number.

It is an amenable number.

212830473 is a deficient number, since it is larger than the sum of its proper divisors (71016727).

212830473 is a wasteful number, since it uses less digits than its factorization.

212830473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18311.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 212830473 is about 14588.7104639170. The cubic root of 212830473 is about 597.0507800323.

Adding to 212830473 its reverse (374038212), we get a palindrome (586868685).

The spelling of 212830473 in words is "two hundred twelve million, eight hundred thirty thousand, four hundred seventy-three".