212937983 has 2 divisors, whose sum is σ = 212937984. Its totient is φ = 212937982.

The previous prime is 212937961. The next prime is 212938003. The reversal of 212937983 is 389739212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212937983 - 2⁶ = 212937919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212937913) 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, 106468991 + 106468992.

It is an arithmetic number, because the mean of its divisors is an integer number (106468992).

Almost surely, 2^212937983 is an apocalyptic number.

212937983 is a deficient number, since it is larger than the sum of its proper divisors (1).

212937983 is an equidigital number, since it uses as much as digits as its factorization.

212937983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 44.

The square root of 212937983 is about 14592.3946972387. The cubic root of 212937983 is about 597.1512952816.

The spelling of 212937983 in words is "two hundred twelve million, nine hundred thirty-seven thousand, nine hundred eighty-three".