9998694 has 16 divisors (see below), whose sum is σ = 22219440. Its totient is φ = 3332880.

The previous prime is 9998689. The next prime is 9998699. The reversal of 9998694 is 4968999.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9998689) and next prime (9998699).

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 185161 = 9998694 / (9 + 9 + 9 + 8 + 6 + 9 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 9998694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92527 + ... + 92634.

It is an arithmetic number, because the mean of its divisors is an integer number (1388715).

Almost surely, 2^9998694 is an apocalyptic number.

9998694 is an abundant number, since it is smaller than the sum of its proper divisors (12220746).

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

9998694 is a wasteful number, since it uses less digits than its factorization.

9998694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185172 (or 185166 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 9998694 is about 3162.0711566946. The cubic root of 9998694 is about 215.4340896225.

The spelling of 9998694 in words is "nine million, nine hundred ninety-eight thousand, six hundred ninety-four".