386206221 has 16 divisors (see below), whose sum is σ = 551807424. Its totient is φ = 239403264.

The previous prime is 386206213. The next prime is 386206229. The reversal of 386206221 is 122602683.

It is an interprime number because it is at equal distance from previous prime (386206213) and next prime (386206229).

It is not a de Polignac number, because 386206221 - 2³ = 386206213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386206229) 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 15 ways as a sum of consecutive naturals, for example, 41386 + ... + 49851.

It is an arithmetic number, because the mean of its divisors is an integer number (34487964).

Almost surely, 2^386206221 is an apocalyptic number.

It is an amenable number.

386206221 is a deficient number, since it is larger than the sum of its proper divisors (165601203).

386206221 is a wasteful number, since it uses less digits than its factorization.

386206221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91340.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 386206221 is about 19652.1301898802. The cubic root of 386206221 is about 728.2375830900.

The spelling of 386206221 in words is "three hundred eighty-six million, two hundred six thousand, two hundred twenty-one".