8687425 has 12 divisors (see below), whose sum is σ = 11406636. Its totient is φ = 6540800.

The previous prime is 8687423. The next prime is 8687429. The reversal of 8687425 is 5247868.

It can be written as a sum of positive squares in 6 ways, for example, as 323761 + 8363664 = 569^2 + 2892^2 .

It is not a de Polignac number, because 8687425 - 2¹ = 8687423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8687423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9796 + ... + 10645.

It is an arithmetic number, because the mean of its divisors is an integer number (950553).

Almost surely, 2^8687425 is an apocalyptic number.

8687425 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8687425 is a deficient number, since it is larger than the sum of its proper divisors (2719211).

8687425 is a wasteful number, since it uses less digits than its factorization.

8687425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20468 (or 20463 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 8687425 is about 2947.4438077765. The cubic root of 8687425 is about 205.5718713884.

The spelling of 8687425 in words is "eight million, six hundred eighty-seven thousand, four hundred twenty-five".