6423385 has 8 divisors (see below), whose sum is σ = 7916616. Its totient is φ = 4999680.

The previous prime is 6423377. The next prime is 6423401. The reversal of 6423385 is 5833246.

It can be written as a sum of positive squares in 4 ways, for example, as 1996569 + 4426816 = 1413^2 + 2104^2 .

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

It is not a de Polignac number, because 6423385 - 2³ = 6423377 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 4¹⁰ + 2²¹ + 3⁴ + 3¹³ + 8³ + 5⁵ .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17176 + ... + 17545.

It is an arithmetic number, because the mean of its divisors is an integer number (989577).

Almost surely, 2^6423385 is an apocalyptic number.

It is an amenable number.

6423385 is a deficient number, since it is larger than the sum of its proper divisors (1493231).

6423385 is a wasteful number, since it uses less digits than its factorization.

6423385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34763.

The product of its digits is 17280, while the sum is 31.

The square root of 6423385 is about 2534.4397803065. The cubic root of 6423385 is about 185.8894108860.

The spelling of 6423385 in words is "six million, four hundred twenty-three thousand, three hundred eighty-five".