212868479 has 2 divisors, whose sum is σ = 212868480. Its totient is φ = 212868478.

The previous prime is 212868431. The next prime is 212868503. The reversal of 212868479 is 974868212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212868479 - 2¹⁶ = 212802943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212868779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106434239 + 106434240.

It is an arithmetic number, because the mean of its divisors is an integer number (106434240).

Almost surely, 2^212868479 is an apocalyptic number.

212868479 is a deficient number, since it is larger than the sum of its proper divisors (1).

212868479 is an equidigital number, since it uses as much as digits as its factorization.

212868479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 47.

The square root of 212868479 is about 14590.0129883424. The cubic root of 212868479 is about 597.0863171761.

It can be divided in two parts, 2128 and 68479, that added together give a palindrome (70607).

The spelling of 212868479 in words is "two hundred twelve million, eight hundred sixty-eight thousand, four hundred seventy-nine".