212799797 has 12 divisors (see below), whose sum is σ = 247898700. Its totient is φ = 182137536.

The previous prime is 212799787. The next prime is 212799817. The reversal of 212799797 is 797997212.

212799797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 57896881 + 154902916 = 7609^2 + 12446^2 .

It is not a de Polignac number, because 212799797 - 2⁸ = 212799541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212799737) 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, 36329 + ... + 41777.

It is an arithmetic number, because the mean of its divisors is an integer number (20658225).

Almost surely, 2^212799797 is an apocalyptic number.

It is an amenable number.

212799797 is a deficient number, since it is larger than the sum of its proper divisors (35098903).

212799797 is an equidigital number, since it uses as much as digits as its factorization.

212799797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6260 (or 6253 counting only the distinct ones).

The product of its digits is 1000188, while the sum is 53.

The square root of 212799797 is about 14587.6590651139. The cubic root of 212799797 is about 597.0220936487.

The spelling of 212799797 in words is "two hundred twelve million, seven hundred ninety-nine thousand, seven hundred ninety-seven".