8640375 has 16 divisors (see below), whose sum is σ = 14378208. Its totient is φ = 4608000.

The previous prime is 8640349. The next prime is 8640391. The reversal of 8640375 is 5730468.

It is not a de Polignac number, because 8640375 - 2⁹ = 8639863 is a prime.

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, 11146 + ... + 11895.

It is an arithmetic number, because the mean of its divisors is an integer number (898638).

Almost surely, 2^8640375 is an apocalyptic number.

8640375 is a deficient number, since it is larger than the sum of its proper divisors (5737833).

8640375 is a wasteful number, since it uses less digits than its factorization.

8640375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23059 (or 23049 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 8640375 is about 2939.4514794431. The cubic root of 8640375 is about 205.2000822665.

It can be divided in two parts, 8640 and 375, that multiplied together give a square (3240000 = 1800²).

The spelling of 8640375 in words is "eight million, six hundred forty thousand, three hundred seventy-five".