213332839 has 2 divisors, whose sum is σ = 213332840. Its totient is φ = 213332838.

The previous prime is 213332831. The next prime is 213332851. The reversal of 213332839 is 938233312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213332839 - 2³ = 213332831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213332831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106666419 + 106666420.

It is an arithmetic number, because the mean of its divisors is an integer number (106666420).

Almost surely, 2^213332839 is an apocalyptic number.

213332839 is a deficient number, since it is larger than the sum of its proper divisors (1).

213332839 is an equidigital number, since it uses as much as digits as its factorization.

213332839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 34.

The square root of 213332839 is about 14605.9179444498. The cubic root of 213332839 is about 597.5201713515.

The spelling of 213332839 in words is "two hundred thirteen million, three hundred thirty-two thousand, eight hundred thirty-nine".