212936663 has 2 divisors, whose sum is σ = 212936664. Its totient is φ = 212936662.

The previous prime is 212936627. The next prime is 212936687. The reversal of 212936663 is 366639212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212936663 - 2¹⁸ = 212674519 is a prime.

It is equal to p_11754659 and since 212936663 and 11754659 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212936263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106468331 + 106468332.

It is an arithmetic number, because the mean of its divisors is an integer number (106468332).

Almost surely, 2^212936663 is an apocalyptic number.

212936663 is a deficient number, since it is larger than the sum of its proper divisors (1).

212936663 is an equidigital number, since it uses as much as digits as its factorization.

212936663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 38.

The square root of 212936663 is about 14592.3494681288. The cubic root of 212936663 is about 597.1500613678.

It can be divided in two parts, 212 and 936663, that multiplied together give a triangular number (198572556 = T₁₉₉₂₈).

The spelling of 212936663 in words is "two hundred twelve million, nine hundred thirty-six thousand, six hundred sixty-three".