8687125 has 8 divisors (see below), whose sum is σ = 10841688. Its totient is φ = 6949600.

The previous prime is 8687117. The next prime is 8687131. The reversal of 8687125 is 5217868.

It can be written as a sum of positive squares in 4 ways, for example, as 1168561 + 7518564 = 1081^2 + 2742^2 .

It is not a de Polignac number, because 8687125 - 2³ = 8687117 is a prime.

It is a super-2 number, since 2×8687125² = 150932281531250, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34624 + ... + 34873.

It is an arithmetic number, because the mean of its divisors is an integer number (1355211).

Almost surely, 2^8687125 is an apocalyptic number.

It is an amenable number.

8687125 is a deficient number, since it is larger than the sum of its proper divisors (2154563).

8687125 is an equidigital number, since it uses as much as digits as its factorization.

8687125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69512 (or 69502 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 8687125 is about 2947.3929157817. The cubic root of 8687125 is about 205.5695050458.

The spelling of 8687125 in words is "eight million, six hundred eighty-seven thousand, one hundred twenty-five".