212873536 has 28 divisors (see below), whose sum is σ = 423161460. Its totient is φ = 106250240.

The previous prime is 212873527. The next prime is 212873537. The reversal of 212873536 is 635378212.

It can be written as a sum of positive squares in 2 ways, for example, as 181063936 + 31809600 = 13456^2 + 5640^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212873495 and 212873504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212873537) 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, 38430 + ... + 43618.

Almost surely, 2^212873536 is an apocalyptic number.

It is an amenable number.

212873536 is a deficient number, since it is larger than the sum of its proper divisors (210287924).

212873536 is an equidigital number, since it uses as much as digits as its factorization.

212873536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842 (or 5832 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 212873536 is about 14590.1862907915. The cubic root of 212873536 is about 597.0910453563.

The spelling of 212873536 in words is "two hundred twelve million, eight hundred seventy-three thousand, five hundred thirty-six".