9867425 has 24 divisors (see below), whose sum is σ = 12799776. Its totient is φ = 7539840.

The previous prime is 9867371. The next prime is 9867427. The reversal of 9867425 is 5247689.

9867425 = 36² + 37² + ... + 309².

It is not a de Polignac number, because 9867425 - 2¹⁶ = 9801889 is a prime.

It is a super-2 number, since 2×9867425² = 194732152261250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 9⁴ + 8⁴ + 6⁵ + 7⁵ + 4⁵ + 2¹⁶ + 5¹⁰ .

It is a Duffinian number.

Its product of digits (120960) is a multiple of the sum of its prime divisors (252).

It is not an unprimeable number, because it can be changed into a prime (9867427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71957 + ... + 72093.

It is an arithmetic number, because the mean of its divisors is an integer number (533324).

Almost surely, 2^9867425 is an apocalyptic number.

It is an amenable number.

9867425 is a deficient number, since it is larger than the sum of its proper divisors (2932351).

9867425 is a wasteful number, since it uses less digits than its factorization.

9867425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 252 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 9867425 is about 3141.2457719828. The cubic root of 9867425 is about 214.4871497383.

The spelling of 9867425 in words is "nine million, eight hundred sixty-seven thousand, four hundred twenty-five".