206614021 has 8 divisors (see below), whose sum is σ = 211397760. Its totient is φ = 201846528.

The previous prime is 206614019. The next prime is 206614043. The reversal of 206614021 is 120416602.

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 206614021 - 2¹ = 206614019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206613983 and 206614001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206614061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23845 + ... + 31333.

It is an arithmetic number, because the mean of its divisors is an integer number (26424720).

Almost surely, 2^206614021 is an apocalyptic number.

It is an amenable number.

206614021 is a deficient number, since it is larger than the sum of its proper divisors (4783739).

206614021 is an equidigital number, since it uses as much as digits as its factorization.

206614021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 206614021 is about 14374.0746136925. The cubic root of 206614021 is about 591.1802678243.

The spelling of 206614021 in words is "two hundred six million, six hundred fourteen thousand, twenty-one".