212770983 has 12 divisors (see below), whose sum is σ = 287655720. Its totient is φ = 139893696.

The previous prime is 212770981. The next prime is 212771023. The reversal of 212770983 is 389077212.

212770983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212770983 - 2¹ = 212770981 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212770981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9333 + ... + 22641.

It is an arithmetic number, because the mean of its divisors is an integer number (23971310).

Almost surely, 2^212770983 is an apocalyptic number.

212770983 is a deficient number, since it is larger than the sum of its proper divisors (74884737).

212770983 is an equidigital number, since it uses as much as digits as its factorization.

212770983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13458 (or 13385 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 212770983 is about 14586.6714160565. The cubic root of 212770983 is about 596.9951459866.

The spelling of 212770983 in words is "two hundred twelve million, seven hundred seventy thousand, nine hundred eighty-three".