212984836 has 9 divisors (see below), whose sum is σ = 372774549. Its totient is φ = 106477824.

The previous prime is 212984831. The next prime is 212984879. The reversal of 212984836 is 638489212.

The square root of 212984836 is 14594.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 72420100 + 140564736 = 8510^2 + 11856^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212984792 and 212984801.

It is not an unprimeable number, because it can be changed into a prime (212984831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 25540 + ... + 32836.

Almost surely, 2^212984836 is an apocalyptic number.

212984836 is the 14594-th square number.

It is an amenable number.

212984836 is a deficient number, since it is larger than the sum of its proper divisors (159789713).

212984836 is an frugal number, since it uses more digits than its factorization.

212984836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14598 (or 7299 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The cubic root of 212984836 is about 597.1950893752.

It can be divided in two parts, 21298 and 4836, that multiplied together give a triangular number (102997128 = T₁₄₃₅₂).

The spelling of 212984836 in words is "two hundred twelve million, nine hundred eighty-four thousand, eight hundred thirty-six".