212673563 has 2 divisors, whose sum is σ = 212673564. Its totient is φ = 212673562.

The previous prime is 212673557. The next prime is 212673589. The reversal of 212673563 is 365376212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212673563 - 2⁶ = 212673499 is a prime.

It is a super-2 number, since 2×212673563² = 90460088798229938, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (212673523) 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 as a sum of consecutive naturals, namely, 106336781 + 106336782.

It is an arithmetic number, because the mean of its divisors is an integer number (106336782).

Almost surely, 2^212673563 is an apocalyptic number.

212673563 is a deficient number, since it is larger than the sum of its proper divisors (1).

212673563 is an equidigital number, since it uses as much as digits as its factorization.

212673563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 35.

The square root of 212673563 is about 14583.3316838094. The cubic root of 212673563 is about 596.9040180441.

The spelling of 212673563 in words is "two hundred twelve million, six hundred seventy-three thousand, five hundred sixty-three".