8238645 has 16 divisors (see below), whose sum is σ = 14646720. Its totient is φ = 4393872.

The previous prime is 8238619. The next prime is 8238683. The reversal of 8238645 is 5468328.

8238645 is a `hidden beast` number, since 8 + 2 + 3 + 8 + 645 = 666.

It is not a de Polignac number, because 8238645 - 2⁵ = 8238613 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30379 + ... + 30648.

It is an arithmetic number, because the mean of its divisors is an integer number (915420).

Almost surely, 2^8238645 is an apocalyptic number.

It is an amenable number.

8238645 is a deficient number, since it is larger than the sum of its proper divisors (6408075).

8238645 is a wasteful number, since it uses less digits than its factorization.

8238645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61041 (or 61035 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 8238645 is about 2870.3039908693. The cubic root of 8238645 is about 201.9692548704.

The spelling of 8238645 in words is "eight million, two hundred thirty-eight thousand, six hundred forty-five".