9878245 has 16 divisors (see below), whose sum is σ = 12926592. Its totient is φ = 7202880.

The previous prime is 9878227. The next prime is 9878249. The reversal of 9878245 is 5428789.

It is not a de Polignac number, because 9878245 - 2⁷ = 9878117 is a prime.

It is a Duffinian number.

9878245 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9878249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4480 + ... + 6310.

It is an arithmetic number, because the mean of its divisors is an integer number (807912).

Almost surely, 2^9878245 is an apocalyptic number.

It is an amenable number.

9878245 is a deficient number, since it is larger than the sum of its proper divisors (3048347).

9878245 is a wasteful number, since it uses less digits than its factorization.

9878245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932.

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

The square root of 9878245 is about 3142.9675467621. The cubic root of 9878245 is about 214.5655188236.

The spelling of 9878245 in words is "nine million, eight hundred seventy-eight thousand, two hundred forty-five".