7971875 has 12 divisors (see below), whose sum is σ = 9968112. Its totient is φ = 6375000.

The previous prime is 7971871. The next prime is 7971881. The reversal of 7971875 is 5781797.

It is not a de Polignac number, because 7971875 - 2² = 7971871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7971871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1850 + ... + 4400.

It is an arithmetic number, because the mean of its divisors is an integer number (830676).

Almost surely, 2^7971875 is an apocalyptic number.

7971875 is a deficient number, since it is larger than the sum of its proper divisors (1996237).

7971875 is an frugal number, since it uses more digits than its factorization.

7971875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576 (or 2556 counting only the distinct ones).

The product of its digits is 123480, while the sum is 44.

The square root of 7971875 is about 2823.4509027075. The cubic root of 7971875 is about 199.7653498041.

The spelling of 7971875 in words is "seven million, nine hundred seventy-one thousand, eight hundred seventy-five".