9887425 has 12 divisors (see below), whose sum is σ = 12299436. Its totient is φ = 7884800.

The previous prime is 9887413. The next prime is 9887431. The reversal of 9887425 is 5247889.

It can be written as a sum of positive squares in 6 ways, for example, as 450241 + 9437184 = 671^2 + 3072^2 .

It is not a de Polignac number, because 9887425 - 2⁵ = 9887393 is a prime.

It is a super-2 number, since 2×9887425² = 195522346261250, which contains 22 as substring.

It is a d-powerful number, because it can be written as 9⁴ + 8² + 8² + 7⁵ + 4⁸ + 2¹⁵ + 5¹⁰ .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15105 + ... + 15745.

It is an arithmetic number, because the mean of its divisors is an integer number (1024953).

Almost surely, 2^9887425 is an apocalyptic number.

It is an amenable number.

9887425 is a deficient number, since it is larger than the sum of its proper divisors (2412011).

9887425 is a wasteful number, since it uses less digits than its factorization.

9887425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268 (or 1263 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 9887425 is about 3144.4276108697. The cubic root of 9887425 is about 214.6319645541.

The spelling of 9887425 in words is "nine million, eight hundred eighty-seven thousand, four hundred twenty-five".