9878741 has 4 divisors (see below), whose sum is σ = 10145772. Its totient is φ = 9611712.

The previous prime is 9878731. The next prime is 9878747. The reversal of 9878741 is 1478789.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6916900 + 2961841 = 2630^2 + 1721^2 .

It is a de Polignac number, because none of the positive numbers 2^k-9878741 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9878692 and 9878701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9878747) 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, 133460 + ... + 133533.

It is an arithmetic number, because the mean of its divisors is an integer number (2536443).

Almost surely, 2^9878741 is an apocalyptic number.

It is an amenable number.

9878741 is a deficient number, since it is larger than the sum of its proper divisors (267031).

9878741 is a wasteful number, since it uses less digits than its factorization.

9878741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267030.

The product of its digits is 112896, while the sum is 44.

The square root of 9878741 is about 3143.0464520907. The cubic root of 9878741 is about 214.5691099715.

The spelling of 9878741 in words is "nine million, eight hundred seventy-eight thousand, seven hundred forty-one".