8921875 has 14 divisors (see below), whose sum is σ = 11171732. Its totient is φ = 7125000.

The previous prime is 8921873. The next prime is 8921911. The reversal of 8921875 is 5781298.

It is not a de Polignac number, because 8921875 - 2¹ = 8921873 is a prime.

It is a Duffinian number.

Its product of digits (40320) is a multiple of the sum of its prime divisors (576).

It is not an unprimeable number, because it can be changed into a prime (8921873) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 15340 + ... + 15910.

Almost surely, 2^8921875 is an apocalyptic number.

8921875 is a deficient number, since it is larger than the sum of its proper divisors (2249857).

8921875 is an frugal number, since it uses more digits than its factorization.

8921875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 576 counting only the distinct ones).

The product of its digits is 40320, while the sum is 40.

The square root of 8921875 is about 2986.9507863371. The cubic root of 8921875 is about 207.4047562118.

The spelling of 8921875 in words is "eight million, nine hundred twenty-one thousand, eight hundred seventy-five".