9687438 has 48 divisors (see below), whose sum is σ = 22503936. Its totient is φ = 3120120.

The previous prime is 9687401. The next prime is 9687443. The reversal of 9687438 is 8347869.

It is a happy number.

9687438 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 9687393 and 9687402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14745 + ... + 15387.

It is an arithmetic number, because the mean of its divisors is an integer number (468832).

Almost surely, 2^9687438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9687438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11251968).

9687438 is an abundant number, since it is smaller than the sum of its proper divisors (12816498).

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

9687438 is a wasteful number, since it uses less digits than its factorization.

9687438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 679 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 9687438 is about 3112.4649395616. The cubic root of 9687438 is about 213.1750198067.

The spelling of 9687438 in words is "nine million, six hundred eighty-seven thousand, four hundred thirty-eight".