9878422 has 4 divisors (see below), whose sum is σ = 14817636. Its totient is φ = 4939210.

The previous prime is 9878419. The next prime is 9878467. The reversal of 9878422 is 2248789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2248789 = 127 ⋅17707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2469604 + ... + 2469607.

It is an arithmetic number, because the mean of its divisors is an integer number (3704409).

Almost surely, 2^9878422 is an apocalyptic number.

9878422 is a deficient number, since it is larger than the sum of its proper divisors (4939214).

9878422 is a wasteful number, since it uses less digits than its factorization.

9878422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939213.

The product of its digits is 64512, while the sum is 40.

The square root of 9878422 is about 3142.9957047378. The cubic root of 9878422 is about 214.5668003559.

It can be divided in two parts, 987 and 8422, that added together give a square (9409 = 97²).

The spelling of 9878422 in words is "nine million, eight hundred seventy-eight thousand, four hundred twenty-two".