4206385 has 4 divisors (see below), whose sum is σ = 5047668. Its totient is φ = 3365104.

The previous prime is 4206383. The next prime is 4206409. The reversal of 4206385 is 5836024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 824464 + 3381921 = 908^2 + 1839^2 .

It is a cyclic number.

It is not a de Polignac number, because 4206385 - 2¹ = 4206383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4206383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420634 + ... + 420643.

It is an arithmetic number, because the mean of its divisors is an integer number (1261917).

Almost surely, 2^4206385 is an apocalyptic number.

It is an amenable number.

4206385 is a deficient number, since it is larger than the sum of its proper divisors (841283).

4206385 is an equidigital number, since it uses as much as digits as its factorization.

4206385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841282.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 4206385 is about 2050.9473420837. The cubic root of 4206385 is about 161.4245830623.

The spelling of 4206385 in words is "four million, two hundred six thousand, three hundred eighty-five".