212057983 has 16 divisors (see below), whose sum is σ = 231517440. Its totient is φ = 193447296.

The previous prime is 212057981. The next prime is 212058001. The reversal of 212057983 is 389750212.

It is a cyclic number.

It is not a de Polignac number, because 212057983 - 2¹ = 212057981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212057981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100566 + ... + 102652.

It is an arithmetic number, because the mean of its divisors is an integer number (14469840).

Almost surely, 2^212057983 is an apocalyptic number.

212057983 is a deficient number, since it is larger than the sum of its proper divisors (19459457).

212057983 is a wasteful number, since it uses less digits than its factorization.

212057983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 212057983 is about 14562.2107868277. The cubic root of 212057983 is about 596.3275519963.

The spelling of 212057983 in words is "two hundred twelve million, fifty-seven thousand, nine hundred eighty-three".