212646673 has 2 divisors, whose sum is σ = 212646674. Its totient is φ = 212646672.

The previous prime is 212646607. The next prime is 212646697. The reversal of 212646673 is 376646212.

212646673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203718529 + 8928144 = 14273^2 + 2988^2 .

It is a cyclic number.

It is not a de Polignac number, because 212646673 - 2¹⁷ = 212515601 is a prime.

It is not a weakly prime, because it can be changed into another prime (212646073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106323336 + 106323337.

It is an arithmetic number, because the mean of its divisors is an integer number (106323337).

Almost surely, 2^212646673 is an apocalyptic number.

It is an amenable number.

212646673 is a deficient number, since it is larger than the sum of its proper divisors (1).

212646673 is an equidigital number, since it uses as much as digits as its factorization.

212646673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 212646673 is about 14582.4097117040. The cubic root of 212646673 is about 596.8788598857.

The spelling of 212646673 in words is "two hundred twelve million, six hundred forty-six thousand, six hundred seventy-three".