212823073 has 2 divisors, whose sum is σ = 212823074. Its totient is φ = 212823072.

The previous prime is 212823041. The next prime is 212823101. The reversal of 212823073 is 370328212.

212823073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (212823101) can be obtained adding 212823073 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163021824 + 49801249 = 12768^2 + 7057^2 .

It is a cyclic number.

It is not a de Polignac number, because 212823073 - 2⁵ = 212823041 is a prime.

It is not a weakly prime, because it can be changed into another prime (212823173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106411536 + 106411537.

It is an arithmetic number, because the mean of its divisors is an integer number (106411537).

Almost surely, 2^212823073 is an apocalyptic number.

It is an amenable number.

212823073 is a deficient number, since it is larger than the sum of its proper divisors (1).

212823073 is an equidigital number, since it uses as much as digits as its factorization.

212823073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 212823073 is about 14588.4568409411. The cubic root of 212823073 is about 597.0438602416.

The spelling of 212823073 in words is "two hundred twelve million, eight hundred twenty-three thousand, seventy-three".