9988694 has 8 divisors (see below), whose sum is σ = 14998608. Its totient is φ = 4989160.

The previous prime is 9988691. The next prime is 9988697. The reversal of 9988694 is 4968899.

It is an interprime number because it is at equal distance from previous prime (9988691) and next prime (9988697).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9988691) 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 in 3 ways as a sum of consecutive naturals, for example, 599 + ... + 4509.

It is an arithmetic number, because the mean of its divisors is an integer number (1874826).

Almost surely, 2^9988694 is an apocalyptic number.

9988694 is a deficient number, since it is larger than the sum of its proper divisors (5009914).

9988694 is a wasteful number, since it uses less digits than its factorization.

9988694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5190.

The product of its digits is 1119744, while the sum is 53.

The square root of 9988694 is about 3160.4895190461. The cubic root of 9988694 is about 215.3622449228.

The spelling of 9988694 in words is "nine million, nine hundred eighty-eight thousand, six hundred ninety-four".