9878222 has 4 divisors (see below), whose sum is σ = 14817336. Its totient is φ = 4939110.

The previous prime is 9878203. The next prime is 9878227. The reversal of 9878222 is 2228789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2228789 = 457 ⋅4877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9878227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2469554 + ... + 2469557.

It is an arithmetic number, because the mean of its divisors is an integer number (3704334).

Almost surely, 2^9878222 is an apocalyptic number.

9878222 is a deficient number, since it is larger than the sum of its proper divisors (4939114).

9878222 is a wasteful number, since it uses less digits than its factorization.

9878222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939113.

The product of its digits is 32256, while the sum is 38.

The square root of 9878222 is about 3142.9638877976. The cubic root of 9878222 is about 214.5653522956.

The spelling of 9878222 in words is "nine million, eight hundred seventy-eight thousand, two hundred twenty-two".