9875405 has 8 divisors (see below), whose sum is σ = 12102912. Its totient is φ = 7732048.

The previous prime is 9875389. The next prime is 9875407. The reversal of 9875405 is 5045789.

9875405 = 28² + 29² + ... + 309².

9875405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9875405 - 2⁴ = 9875389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9875407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20777 + ... + 21246.

It is an arithmetic number, because the mean of its divisors is an integer number (1512864).

Almost surely, 2^9875405 is an apocalyptic number.

It is an amenable number.

9875405 is a deficient number, since it is larger than the sum of its proper divisors (2227507).

9875405 is a wasteful number, since it uses less digits than its factorization.

9875405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42075.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 9875405 is about 3142.5157119735. The cubic root of 9875405 is about 214.5449542907.

The spelling of 9875405 in words is "nine million, eight hundred seventy-five thousand, four hundred five".