212429983 has 2 divisors, whose sum is σ = 212429984. Its totient is φ = 212429982.

The previous prime is 212429963. The next prime is 212430037. The reversal of 212429983 is 389924212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212429983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212429923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106214991 + 106214992.

It is an arithmetic number, because the mean of its divisors is an integer number (106214992).

Almost surely, 2^212429983 is an apocalyptic number.

212429983 is a deficient number, since it is larger than the sum of its proper divisors (1).

212429983 is an equidigital number, since it uses as much as digits as its factorization.

212429983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 212429983 is about 14574.9779759696. The cubic root of 212429983 is about 596.6760482835.

The spelling of 212429983 in words is "two hundred twelve million, four hundred twenty-nine thousand, nine hundred eighty-three".