9888394 has 4 divisors (see below), whose sum is σ = 14832594. Its totient is φ = 4944196.

The previous prime is 9888353. The next prime is 9888397. The reversal of 9888394 is 4938889.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4938889 = 31 ⋅159319.

It can be written as a sum of positive squares in only one way, i.e., 6066369 + 3822025 = 2463^2 + 1955^2 .

It is not an unprimeable number, because it can be changed into a prime (9888397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2472097 + ... + 2472100.

Almost surely, 2^9888394 is an apocalyptic number.

9888394 is a deficient number, since it is larger than the sum of its proper divisors (4944200).

9888394 is a wasteful number, since it uses less digits than its factorization.

9888394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944199.

The product of its digits is 497664, while the sum is 49.

The square root of 9888394 is about 3144.5816891917. The cubic root of 9888394 is about 214.6389758700.

The spelling of 9888394 in words is "nine million, eight hundred eighty-eight thousand, three hundred ninety-four".