206485421 has 8 divisors (see below), whose sum is σ = 215608704. Its totient is φ = 197374320.

The previous prime is 206485399. The next prime is 206485457. The reversal of 206485421 is 124584602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206485421 - 2¹⁴ = 206469037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206485921) 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 7 ways as a sum of consecutive naturals, for example, 57056 + ... + 60566.

It is an arithmetic number, because the mean of its divisors is an integer number (26951088).

Almost surely, 2^206485421 is an apocalyptic number.

It is an amenable number.

206485421 is a deficient number, since it is larger than the sum of its proper divisors (9123283).

206485421 is a wasteful number, since it uses less digits than its factorization.

206485421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6091.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 206485421 is about 14369.6005859592. The cubic root of 206485421 is about 591.0575888942.

The spelling of 206485421 in words is "two hundred six million, four hundred eighty-five thousand, four hundred twenty-one".