6423605 has 8 divisors (see below), whose sum is σ = 7835064. Its totient is φ = 5054400.

The previous prime is 6423589. The next prime is 6423611. The reversal of 6423605 is 5063246.

It can be written as a sum of positive squares in 4 ways, for example, as 844561 + 5579044 = 919^2 + 2362^2 .

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

It is not a de Polignac number, because 6423605 - 2⁴ = 6423589 is a prime.

It is a Duffinian number.

It is a congruent 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, 10226 + ... + 10835.

It is an arithmetic number, because the mean of its divisors is an integer number (979383).

Almost surely, 2^6423605 is an apocalyptic number.

It is an amenable number.

6423605 is a deficient number, since it is larger than the sum of its proper divisors (1411459).

6423605 is a wasteful number, since it uses less digits than its factorization.

6423605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21127.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 6423605 is about 2534.4831820314. The cubic root of 6423605 is about 185.8915330902.

The spelling of 6423605 in words is "six million, four hundred twenty-three thousand, six hundred five".