9998894 has 4 divisors (see below), whose sum is σ = 14998344. Its totient is φ = 4999446.

The previous prime is 9998893. The next prime is 9998903. The reversal of 9998894 is 4988999.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2499722 + ... + 2499725.

It is an arithmetic number, because the mean of its divisors is an integer number (3749586).

Almost surely, 2^9998894 is an apocalyptic number.

9998894 is a deficient number, since it is larger than the sum of its proper divisors (4999450).

9998894 is a wasteful number, since it uses less digits than its factorization.

9998894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4999449.

The product of its digits is 1679616, while the sum is 56.

The square root of 9998894 is about 3162.1027813782. The cubic root of 9998894 is about 215.4355260278.

The spelling of 9998894 in words is "nine million, nine hundred ninety-eight thousand, eight hundred ninety-four".