206425339 has 4 divisors (see below), whose sum is σ = 218568024. Its totient is φ = 194282656.

The previous prime is 206425337. The next prime is 206425357. The reversal of 206425339 is 933524602.

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 206425339 - 2¹ = 206425337 is a prime.

It is a super-2 number, since 2×206425339² = 85222841162529842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206425337) 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 in 3 ways as a sum of consecutive naturals, for example, 6071317 + ... + 6071350.

It is an arithmetic number, because the mean of its divisors is an integer number (54642006).

Almost surely, 2^206425339 is an apocalyptic number.

206425339 is a deficient number, since it is larger than the sum of its proper divisors (12142685).

206425339 is a wasteful number, since it uses less digits than its factorization.

206425339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12142684.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 206425339 is about 14367.5098399131. The cubic root of 206425339 is about 591.0002557634. Note that the first 3 decimals are identical.

The spelling of 206425339 in words is "two hundred six million, four hundred twenty-five thousand, three hundred thirty-nine".