212004863 has 4 divisors (see below), whose sum is σ = 242291280. Its totient is φ = 181718448.

The previous prime is 212004851. The next prime is 212004887. The reversal of 212004863 is 368400212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212004863 - 2¹⁰ = 212003839 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212004803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15143198 + ... + 15143211.

It is an arithmetic number, because the mean of its divisors is an integer number (60572820).

Almost surely, 2^212004863 is an apocalyptic number.

212004863 is a deficient number, since it is larger than the sum of its proper divisors (30286417).

212004863 is an equidigital number, since it uses as much as digits as its factorization.

212004863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30286416.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 212004863 is about 14560.3867737090. The cubic root of 212004863 is about 596.2777549794.

The spelling of 212004863 in words is "two hundred twelve million, four thousand, eight hundred sixty-three".