9875431 has 4 divisors (see below), whose sum is σ = 9898672. Its totient is φ = 9852192.

The previous prime is 9875429. The next prime is 9875443. The reversal of 9875431 is 1345789.

9875431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9875431 - 2¹ = 9875429 is a prime.

It is a super-2 number, since 2×9875431² = 195048274871522, which contains 22 as substring.

It is a Duffinian number.

9875431 is a lucky number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9875471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10971 + ... + 11836.

It is an arithmetic number, because the mean of its divisors is an integer number (2474668).

Almost surely, 2^9875431 is an apocalyptic number.

9875431 is a deficient number, since it is larger than the sum of its proper divisors (23241).

9875431 is a wasteful number, since it uses less digits than its factorization.

9875431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23240.

The product of its digits is 30240, while the sum is 37.

The square root of 9875431 is about 3142.5198487838. The cubic root of 9875431 is about 214.5451425755.

The spelling of 9875431 in words is "nine million, eight hundred seventy-five thousand, four hundred thirty-one".