212860433 has 2 divisors, whose sum is σ = 212860434. Its totient is φ = 212860432.

The previous prime is 212860399. The next prime is 212860441. The reversal of 212860433 is 334068212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134838544 + 78021889 = 11612^2 + 8833^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212860433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212860396 and 212860405.

It is not a weakly prime, because it can be changed into another prime (212860463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106430216 + 106430217.

It is an arithmetic number, because the mean of its divisors is an integer number (106430217).

Almost surely, 2^212860433 is an apocalyptic number.

It is an amenable number.

212860433 is a deficient number, since it is larger than the sum of its proper divisors (1).

212860433 is an equidigital number, since it uses as much as digits as its factorization.

212860433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 212860433 is about 14589.7372491762. The cubic root of 212860433 is about 597.0787941944.

The spelling of 212860433 in words is "two hundred twelve million, eight hundred sixty thousand, four hundred thirty-three".