212617434 has 8 divisors (see below), whose sum is σ = 425234880. Its totient is φ = 70872476.

The previous prime is 212617421. The next prime is 212617459. The reversal of 212617434 is 434716212.

212617434 is digitally balanced in base 3, 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.

212617434 is an admirable number.

It is an unprimeable number.

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, 17718114 + ... + 17718125.

It is an arithmetic number, because the mean of its divisors is an integer number (53154360).

Almost surely, 2^212617434 is an apocalyptic number.

212617434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212617434 is a wasteful number, since it uses less digits than its factorization.

212617434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35436244.

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

The square root of 212617434 is about 14581.4071337440. The cubic root of 212617434 is about 596.8515016068.

The spelling of 212617434 in words is "two hundred twelve million, six hundred seventeen thousand, four hundred thirty-four".