9778338 has 12 divisors (see below), whose sum is σ = 21186438. Its totient is φ = 3259440.

The previous prime is 9778337. The next prime is 9778387. The reversal of 9778338 is 8338779.

It can be written as a sum of positive squares in only one way, i.e., 8485569 + 1292769 = 2913^2 + 1137^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9778293 and 9778302.

It is not an unprimeable number, because it can be changed into a prime (9778337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 271603 + ... + 271638.

Almost surely, 2^9778338 is an apocalyptic number.

9778338 is an abundant number, since it is smaller than the sum of its proper divisors (11408100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9778338 is a wasteful number, since it uses less digits than its factorization.

9778338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543249 (or 543246 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 9778338 is about 3127.0334184335. The cubic root of 9778338 is about 213.8397058581.

The spelling of 9778338 in words is "nine million, seven hundred seventy-eight thousand, three hundred thirty-eight".