212884273 has 24 divisors (see below), whose sum is σ = 263169000. Its totient is φ = 171376128.

The previous prime is 212884267. The next prime is 212884289. The reversal of 212884273 is 372488212.

It can be written as a sum of positive squares in 4 ways, for example, as 48608784 + 164275489 = 6972^2 + 12817^2 .

It is not a de Polignac number, because 212884273 - 2⁵ = 212884241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212884253) 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 23 ways as a sum of consecutive naturals, for example, 50553 + ... + 54601.

It is an arithmetic number, because the mean of its divisors is an integer number (10965375).

Almost surely, 2^212884273 is an apocalyptic number.

It is an amenable number.

212884273 is a deficient number, since it is larger than the sum of its proper divisors (50284727).

212884273 is a wasteful number, since it uses less digits than its factorization.

212884273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4129 (or 4122 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 212884273 is about 14590.5542389588. The cubic root of 212884273 is about 597.1010839593.

The spelling of 212884273 in words is "two hundred twelve million, eight hundred eighty-four thousand, two hundred seventy-three".