212925863 has 2 divisors, whose sum is σ = 212925864. Its totient is φ = 212925862.

The previous prime is 212925847. The next prime is 212925883. The reversal of 212925863 is 368529212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212925863 - 2⁴ = 212925847 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212925883) 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, 106462931 + 106462932.

It is an arithmetic number, because the mean of its divisors is an integer number (106462932).

Almost surely, 2^212925863 is an apocalyptic number.

212925863 is a deficient number, since it is larger than the sum of its proper divisors (1).

212925863 is an equidigital number, since it uses as much as digits as its factorization.

212925863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 212925863 is about 14591.9794065096. The cubic root of 212925863 is about 597.1399655180.

The spelling of 212925863 in words is "two hundred twelve million, nine hundred twenty-five thousand, eight hundred sixty-three".