212646607 has 2 divisors, whose sum is σ = 212646608. Its totient is φ = 212646606.

The previous prime is 212646593. The next prime is 212646673. The reversal of 212646607 is 706646212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212646607 - 2⁷ = 212646479 is a prime.

It is a super-2 number, since 2×212646607² = 90437158937224898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212646697) 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, 106323303 + 106323304.

It is an arithmetic number, because the mean of its divisors is an integer number (106323304).

Almost surely, 2^212646607 is an apocalyptic number.

212646607 is a deficient number, since it is larger than the sum of its proper divisors (1).

212646607 is an equidigital number, since it uses as much as digits as its factorization.

212646607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 212646607 is about 14582.4074487034. The cubic root of 212646607 is about 596.8787981338.

The spelling of 212646607 in words is "two hundred twelve million, six hundred forty-six thousand, six hundred seven".