212729339 has 4 divisors (see below), whose sum is σ = 223925640. Its totient is φ = 201533040.

The previous prime is 212729329. The next prime is 212729351. The reversal of 212729339 is 933927212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212729339 - 2²⁴ = 195952123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212729329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5598122 + ... + 5598159.

It is an arithmetic number, because the mean of its divisors is an integer number (55981410).

Almost surely, 2^212729339 is an apocalyptic number.

212729339 is a deficient number, since it is larger than the sum of its proper divisors (11196301).

212729339 is a wasteful number, since it uses less digits than its factorization.

212729339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11196300.

The product of its digits is 40824, while the sum is 38.

The square root of 212729339 is about 14585.2438786604. The cubic root of 212729339 is about 596.9561950487.

The spelling of 212729339 in words is "two hundred twelve million, seven hundred twenty-nine thousand, three hundred thirty-nine".