7887125 has 8 divisors (see below), whose sum is σ = 9843288. Its totient is φ = 6309600.

The previous prime is 7887097. The next prime is 7887149. The reversal of 7887125 is 5217887.

It can be written as a sum of positive squares in 4 ways, for example, as 2289169 + 5597956 = 1513^2 + 2366^2 .

It is not a de Polignac number, because 7887125 - 2¹⁶ = 7821589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 31424 + ... + 31673.

It is an arithmetic number, because the mean of its divisors is an integer number (1230411).

Almost surely, 2^7887125 is an apocalyptic number.

It is an amenable number.

7887125 is a deficient number, since it is larger than the sum of its proper divisors (1956163).

7887125 is an equidigital number, since it uses as much as digits as its factorization.

7887125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63112 (or 63102 counting only the distinct ones).

The product of its digits is 31360, while the sum is 38.

The square root of 7887125 is about 2808.4025708577. The cubic root of 7887125 is about 199.0549161167.

The spelling of 7887125 in words is "seven million, eight hundred eighty-seven thousand, one hundred twenty-five".